Arizona Negligent Homicide Lawyers
Charged with negligent homicide in Arizona? Under A.R.S. § 13-1102 it is a Class 4 felony, often a dangerous offense carrying 4 to 8 years of flat-time prison. Do not talk to police or admit fault. Proving your conduct was an accident, not criminal negligence, can mean a reduced charge or no charge at all.
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When you call Tamou Law Group, you reach a firm that handles criminal defense exclusively, with serious experience defending vehicular manslaughter, negligent homicide, DUI causing death, and second-degree murder charges across Arizona. Our team includes former prosecutors who charged fatal-crash cases and law enforcement officers who investigated them, so we know how the State builds a homicide case from the scene up, and where those cases break down.
At many large firms, the name on the building is a marketing figurehead, you will rarely get them on the phone and your case is handed to a junior associate. When you hire Tamou Law Group, your case is handled by a full team of attorneys, not associates, including Michael Tamou. Call 623-321-4699 for a free, confidential consultation, 24/7.
What Is Negligent Homicide in Arizona?
Quick answer: In Arizona, negligent homicide (A.R.S. § 13-1102) is causing a death through criminal negligence, failing to perceive a substantial risk that a reasonable person would have. It is a Class 4 felony, and when a vehicle is involved it is usually a dangerous offense carrying 4 to 8 years of flat-time prison. It is the charge one step below manslaughter, so the defense often focuses on showing the conduct was an ordinary accident, not criminal negligence, or that another factor caused the death.
Key Takeaways
- Negligent homicide (A.R.S. § 13-1102) is causing a death through criminal negligence, a Class 4 felony.
- With a vehicle involved it is usually a dangerous offense: 4–8 years (6 presumptive) of flat time, though probation is possible in some non-dangerous cases.
- It sits one rung below vehicular manslaughter (recklessness, Class 2) and well below second-degree murder, the difference is the mental state.
- Proving the conduct was an ordinary accident, not criminal negligence, can defeat the charge entirely.
- The strongest defenses attack causation, the negligence standard, and the State’s accident reconstruction and toxicology.
- Your case is handled by a full team of attorneys, not associates, including Michael Tamou, available 24/7 at 623-321-4699.
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Class 2 Dangerous Felony
Charged After a Fatal Crash?
Vehicular manslaughter under A.R.S. § 13-1103 carries 7 to 21 years of flat-time prison. The hours after a fatal crash decide the case, do not give a statement before you call us.
Call 623-321-4699 →Mental State Decides It
Recklessness or Accident?
The line between manslaughter, negligent homicide, and no crime at all is the driver’s mental state. Proving it was a tragic accident, not recklessness, can change everything.
See the Difference →Murder Exposure
Was DUI Involved?
A fatal DUI crash can be charged as second-degree murder, especially with a high BAC or prior DUIs, stacking aggravated DUI on top. We fight the charge level first.
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Arizona Homicide Law, Charge by Charge
After a fatal crash, the charge depends almost entirely on the driver’s mental state. Statutes link to azleg.gov.
Vehicular Manslaughter, A.R.S. § 13-1103
Arizona has no separate “vehicular manslaughter” statute, a fatal crash caused by reckless driving is charged as vehicular manslaughter under A.R.S. § 13-1103. “Recklessly” means the driver was aware of and consciously disregarded a substantial and unjustifiable risk, such as extreme speeding, street racing, or running red lights. Manslaughter is a Class 2 felony, and because a vehicle is a dangerous instrument it is a dangerous offense carrying flat-time prison.
Negligent Homicide, A.R.S. § 13-1102
When a driver causes a death through criminal negligence, a failure to perceive a substantial risk that a reasonable person would have perceived, the charge is negligent homicide, a Class 4 felony. The distinction from manslaughter is the mental state: negligence (should have known) versus recklessness (knew and disregarded). Persuading the State or a jury that the conduct was negligent rather than reckless can cut the sentence dramatically, and is one of the most important defense goals.
Second-Degree Murder, A.R.S. § 13-1104
A fatal crash can be charged as second-degree murder when the State alleges the driver acted with “extreme indifference to human life.” This typically arises with a very high BAC, prior DUI convictions, wrong-way driving, or extreme speed. Second-degree murder is a Class 1 felony with a 10 to 25 year range under A.R.S. § 13-710. Defeating the “extreme indifference” theory to move the case down to manslaughter is often the central battle.
DUI Causing Death & Aggravated DUI, A.R.S. § 28-1383
When alcohol or drugs are involved in a fatal crash, the State frequently stacks aggravated DUI charges on top of the homicide count, and uses impairment to push the homicide charge higher. Challenging the stop, the blood draw, the chain of custody, and rising-BAC science is therefore central to the entire defense, not just the DUI.
Endangerment & Leaving the Scene, A.R.S. §§ 13-1201, 28-661
Surviving occupants and nearby drivers can support endangerment counts (A.R.S. § 13-1201) for each person placed at substantial risk. Failing to stop and remain at a crash involving death or serious injury is a separate, serious felony under A.R.S. § 28-661, often charged alongside the homicide count. Reducing the overall count structure is part of the defense.
What the State Must Prove for Negligent Homicide
To convict you of Negligent Homicide under A.R.S. § 13-1102, the prosecutor must prove every one of these elements beyond a reasonable doubt. If even one fails, the charge fails.
- 1Causation. Your conduct actually caused the death, not another person, the victim’s own conduct, or an unforeseeable, intervening event.
- 2A resulting death. Another person died as a result.
- 3Criminal negligence. You failed to perceive a substantial and unjustifiable risk that a reasonable person would have perceived. This is a lower mental state than the recklessness required for manslaughter, and proving the conduct was an ordinary accident (not even negligent) defeats the charge.
Examples of Conduct Charged as Negligent Homicide
- A fatal crash caused by a momentary failure to notice a hazard
- A death resulting from careless, but not reckless, handling of a vehicle or firearm
- Failing to recognize a dangerous condition that a reasonable person would have caught
- A case the State first charged as manslaughter but that, at most, fits criminal negligence
Negligence vs. Recklessness vs. Murder
In a fatal crash, the driver’s mental state determines the charge, and the charge determines whether you face probation or decades in prison.
| Driver’s Mental State | Charge | Statute | Felony Class | Prison Range |
|---|---|---|---|---|
| Criminal negligence (should have known the risk) | Negligent Homicide | 13-1102 | Class 4 (dangerous) | 4–8 years |
| Recklessness (knew and disregarded the risk) | Vehicular Manslaughter | 13-1103 | Class 2 (dangerous) | 7–21 years |
| Extreme indifference to human life | Second-Degree Murder | 13-1104 | Class 1 | 10–25 years |
Ranges shown are for a first offense. Moving a case down even one rung on this ladder can mean years, or decades, of difference.
Penalties for Negligent Homicide in Arizona
Negligent homicide is a Class 4 felony. When a vehicle or other dangerous instrument is involved it is usually a dangerous offense, meaning flat-time prison; in some non-dangerous cases probation is possible.
Class 4
Negligent Homicide
Class 2
Vehicular Manslaughter
Class 1
Second-Degree Murder
| Charge | Felony Class | Minimum | Presumptive | Maximum |
|---|---|---|---|---|
| Negligent Homicide | Class 4 (dangerous) | 4 years | 6 years | 8 years |
| Vehicular Manslaughter | Class 2 (dangerous) | 7 years | 10.5 years | 21 years |
| Second-Degree Murder | Class 1 | 10 years | 16 years | 25 years |
⚠ “Dangerous Offense” Means Flat Time
A dangerous-offense designation under A.R.S. § 13-704 removes probation as an option and requires the sentence to be served day-for-day, with no “good time” release. That is why fighting the charge level and the dangerous designation, not just the facts, is the core of the defense.
Collateral Consequences
Beyond prison, a vehicular homicide conviction brings driver’s license revocation, a permanent felony record, loss of firearm and civil rights, immigration consequences for non-citizens, and almost always a parallel civil wrongful-death lawsuit from the victim’s family. Coordinating the criminal defense with that civil exposure matters from day one.
Common Defenses in Arizona Vehicular Homicide Cases
The State must prove your driving caused the death and that you acted with a culpable mental state. Each of those is a place to fight.
Attacking Causation & the Crash
Lack of Causation. The State must prove your driving, not another factor, caused the death. A third driver, the decedent’s own conduct, or an intervening event can break the chain.
Faulty Accident Reconstruction. Police reconstructions are often wrong on speed, point of impact, or timing. Our independent experts frequently reach the opposite conclusion.
Unavoidable Accident. If a reasonable driver could not have prevented the crash, there is no crime, only a tragedy.
Mechanical Failure or Road Conditions. Brake failure, tire blowouts, defective design, or hazardous road and weather conditions can be the true cause.
Sudden Medical Emergency. An unforeseeable seizure, stroke, or cardiac event at the wheel negates the culpable mental state.
Attacking Mental State & the Evidence
Accident, Not Recklessness. Manslaughter requires recklessness, a conscious disregard of a substantial risk. Ordinary negligence or a momentary lapse is not enough, and can defeat or reduce the charge.
Fighting the Charge Level. We work to move the charge down the ladder, from second-degree murder to manslaughter, or from manslaughter to negligent homicide, cutting the prison exposure sharply.
Blood Draw & BAC Challenges. Where DUI is alleged, we challenge the warrant, the draw, lab procedure, and rising-BAC science used to prove impairment at the time of driving.
Unlawful Stop, Search & Statements. Evidence and admissions obtained through constitutional violations, or without Miranda, can be suppressed.
Event Data Recorder Disputes. “Black box” data can be misread or incomplete. We bring in EDR analysts to test what it really shows.
After reviewing your case, we will explain which defenses apply and the best path forward.
CALL 623-321-4699The Experts We Bring to the Table
The State builds fatal-crash cases with police reconstructionists and crime labs. We answer with the same caliber of specialists, so the government’s science gets challenged by people who do this for a living.
Accident Reconstructionists
Crash Dynamics
Independently analyze speed, braking, point of impact, sight lines, and timing, often reaching conclusions that contradict the police report and break the State’s causation theory.
Forensic Toxicologists
BAC & Impairment
Challenge blood draws, lab protocol, and rising-BAC science used to allege impairment at the time of driving, central to fighting DUI-homicide and murder theories.
Event Data Recorder Analysts
“Black Box” Data
Extract and interpret the vehicle’s EDR data, speed, throttle, braking, and seatbelt use, and expose where the State has misread or cherry-picked it.
Biomechanical Engineers
Injury Causation
Assess whether the injuries and forces are consistent with the State’s account of how the crash happened, and who was driving.
Medical Examiners & Pathologists
Cause of Death
Provide independent review of the autopsy and cause of death, including pre-existing conditions and alternative causes the State overlooked.
Human Factors Experts
Perception & Reaction
Evaluate driver perception-reaction time, visibility, distraction, and whether a reasonable driver could have avoided the collision at all.
What to Do If You’re Under Investigation
What you do in the first hours after a deadly crash can decide whether you are charged, and with what.
Do Not Admit Fault
At the scene, to police, or to anyone, do not apologize or speculate about what happened. “I’m sorry” can be used as an admission. Provide license and registration and otherwise stay silent.
Do Not Consent to a Blood Draw Without Counsel
Police often seek blood after a fatal crash. You can require a warrant. Anything you say about drinking or drugs will be used to push the charge higher.
Preserve the Vehicle & Black Box
Do not repair or release your vehicle, it holds event-data-recorder evidence critical to reconstruction. Counsel will move to preserve it immediately.
Write Down What You Remember
As soon as you safely can, note road and weather conditions, the other driver’s actions, witnesses, and the sequence of events. Memory fades fast.
Do Not Post on Social Media
Photos, check-ins, and comments are all evidence. Set accounts to private and post nothing about the crash.
Call Tamou Law Group at 623-321-4699
The earlier we are involved, the more we can do, preserving evidence, retaining reconstructionists, and engaging prosecutors before charges are filed. Available 24/7.
Mitigation: Shaping the Outcome
In a fatal-crash case, mitigation can move a charge down the homicide ladder or off the dangerous-offense range entirely.
We build mitigation packages that include a complete personal history, lack of prior record, employment and family ties, genuine remorse, counseling and treatment records where substance use is involved, and a proportionality review showing reduced charges and sentences in comparable Arizona cases. Presented early and credibly, mitigation can be the difference between a negligent-homicide probation outcome and a decade of flat time.
The Pre-Charge Window
Fatal-crash investigations often take weeks or months. That window is your best opportunity.
While detectives are still investigating, we can conduct our own reconstruction, preserve evidence, and present prosecutors with the science before they decide what to charge, sometimes the difference between negligent homicide and manslaughter, or between charges and no charges at all. The sooner Michael Tamou is involved, the more leverage we have.
A Full Team of Attorneys, Not Associates
The single biggest factor in your defense is who actually handles your case, and how hard they fight it.
At many large firms, the name on the building is a marketing figurehead. You may never get them on the phone, and your case is handed to a rotating junior associate who has never tried a case like yours. At Tamou Law Group, your defense is handled by a full team of experienced attorneys, not junior associates, including founding attorney Michael Tamou. The same senior team handles your calls, your strategy, and your court dates.
Our reputation is built on results and on our clients’ words, a 5.0-star Google rating from people we have actually defended. Read them in the reviews below.
Arizona Vehicular Manslaughter Lawyers at Tamou Law Group
Protecting Your Freedom When the Stakes Could Not Be HigherA Proven Defense Process for Arizona Fatal-Crash Cases
- Challenge Causation & Recklessness
- Reduce the Charge Level & Prison Exposure
- Build an Independent Reconstruction
A vehicular homicide charge is among the most serious a person can face in Arizona. Because a vehicle is treated as a dangerous instrument, manslaughter becomes a dangerous offense, meaning flat-time prison with no probation and no early release. The difference between negligent homicide, manslaughter, and second-degree murder, often years or decades, comes down to proving the driver’s state of mind.
When you work with Tamou Law Group, you get a team that includes former prosecutors and law enforcement officers who have built and investigated fatal-crash cases. We bring in our own accident reconstructionists, toxicologists, and event-data-recorder analysts to test the State’s theory before it ever reaches a jury.
A fatal crash is not automatically a crime. Tragic accidents happen without recklessness, and the State must prove a culpable mental state beyond a reasonable doubt. We force them to, with independent science, not assumptions.
Call Michael Tamou Today & Start Fighting These Charges Right Now
623-321-46991 Immediate Response & Scene Preservation
Call before you speak to police. We move fast to preserve the vehicle, the event data recorder (“black box”), skid and scene evidence, and witness accounts before they disappear or degrade.
2 Independent Accident Reconstruction
We retain our own reconstructionists to analyze speed, point of impact, sight lines, and timing, often contradicting the police report and showing the crash was unavoidable or caused by another factor.
3 Attack Causation & Mental State
The State must prove your driving caused the death and that you acted recklessly, not merely negligently. We challenge both, the heart of reducing or defeating a manslaughter charge.
4 Toxicology & DUI Challenges
Where alcohol or drugs are alleged, we challenge blood draws, rising-BAC science, lab procedure, and impairment evidence that the State uses to push the charge toward second-degree murder.
5 Mitigation & Trial Readiness
We prepare every case for trial while pursuing charge reductions and mitigation. If resolution is the right path, we fight to move the charge down the homicide ladder and off flat-time exposure.
Recent Fatal-Crash Defense Results
Every case is unique and results depend on the facts, but these examples reflect how our firm handles vehicular homicide cases across Arizona.
Negligent Homicide, Disputed Causation
Charges Dismissed
Independent reconstruction showed the decedent, not our client, created the hazard. With causation broken, the State dismissed the negligent homicide charge.
Negligent Homicide (Class 4 Dangerous)
Probation, No Prison
With a clean record and strong mitigation, the client received supervised probation instead of the dangerous-offense prison term the State initially sought.
Negligent Homicide, Pure Accident
Not Guilty at Trial
We showed the conduct was an ordinary, unavoidable accident that did not rise to criminal negligence. The jury returned a not-guilty verdict.
Negligent Homicide, Unavoidable Crash
Charges Dismissed
Reconstruction showed the crash was unavoidable; with no criminal negligence, the case was dismissed.
Reduced From Manslaughter
Reduced to Negligent Homicide
By defeating recklessness, we moved a manslaughter charge down to negligent homicide.
Negligent Homicide, Probation
Probation, No Prison
Strong mitigation and a non-dangerous resolution kept our client out of prison.
What Clients Say About Tamou Law
Real Google reviews from clients we have defended across Phoenix and Maricopa County. Every review is from a criminal defense client, never padded with non-legal work.
Clients reach us searching in many ways, for the best negligent homicide lawyer in Arizona, for lawyers who handle negligent homicide charges, or for Phoenix negligent homicide defense and a Scottsdale negligent homicide attorney. However you found us, Tamou Law Group defends negligent homicide cases across Phoenix, Scottsdale, Mesa, Tempe, Chandler, Gilbert, Glendale, Peoria, and all of Maricopa County, with representation statewide. Call 623-321-4699 for a free, confidential consultation, 24/7.
Arizona Vehicular Manslaughter FAQs
Common questions about fatal-crash charges, penalties, and defenses in Arizona.
What is negligent homicide in Arizona?
Negligent homicide (A.R.S. 13-1102) is causing the death of another person through criminal negligence, failing to perceive a substantial and unjustifiable risk that a reasonable person would have perceived. It is a Class 4 felony.
What is the difference between negligent homicide and manslaughter?
The difference is mental state. Negligent homicide is criminal negligence (you should have known the risk). Vehicular manslaughter (A.R.S. 13-1103) is recklessness (you actually knew and disregarded the risk). Showing the conduct was merely negligent, not reckless, is a major reason manslaughter charges get reduced to negligent homicide.
Is negligent homicide a felony?
Yes. It is a Class 4 felony. When a vehicle or other dangerous instrument is involved it is usually charged as a dangerous offense, which means flat-time prison; in some non-dangerous cases probation is possible.
What does criminal negligence mean?
It means you failed to perceive a substantial and unjustifiable risk that a reasonable person would have perceived, a gross deviation from the standard of care. It is more than the ordinary carelessness behind a civil lawsuit, but less than the recklessness required for manslaughter.
What are the penalties for negligent homicide in Arizona?
As a standard Class 4 felony the range is 1 to 3.75 years. As a dangerous offense (common when a vehicle is involved) it is 4 to 8 years (6 presumptive), served day-for-day.
Can a negligent homicide charge be dismissed or reduced?
Yes. Charges can be dismissed where causation fails or the conduct was an ordinary, non-negligent accident, and they are frequently reduced down from a manslaughter charge by defeating the recklessness theory.
What if it was just an accident?
A genuine accident, without criminal negligence, is not a crime. The State must prove a gross deviation from how a reasonable person would have acted, and an unforeseeable event or another party’s fault is a defense.
Was the death really caused by my conduct?
Causation is an element the State must prove. A third driver, the victim’s own conduct, a mechanical failure, or an unforeseeable medical event can break the causal chain and defeat the charge.
Will I also be sued by the victim’s family?
Almost always. A fatal incident typically triggers a civil wrongful-death lawsuit in addition to the criminal case, so the two need to be defended in a coordinated way.
Should I talk to the police after a fatal accident?
No. Provide your license and registration, then politely decline to answer questions and ask for a lawyer. Do not apologize or speculate, even ‘I’m sorry’ can be treated as an admission.
Why is accident reconstruction so important?
Police reconstructions are frequently wrong on speed, timing, and point of impact. An independent reconstruction can show the crash was unavoidable or caused by another factor, directly attacking causation and negligence.
Will I get a real attorney or a junior associate?
At many large firms the name on the door is a marketing figurehead and your case is handed to a rotating associate. At Tamou Law Group your defense is handled by a full team of experienced attorneys, not associates, including founding attorney Michael Tamou. Call 623-321-4699, 24/7.
Arizona Statutes Cited on This Page
Statutes link to the official Arizona Revised Statutes at azleg.gov.
Two Arizona Offices, One Team
We serve all of Maricopa County and the surrounding area, with free, confidential consultations 24/7 by phone and in-person meetings at either office by appointment.
Case Results Disclaimer: The results described on this page are based on specific facts and circumstances and do not guarantee or predict a similar outcome in any future case. Every case is different. Past results do not guarantee future results. No attorney-client relationship is formed by viewing this page or submitting a contact form until a written fee agreement has been signed. Tamou Law Group, PLLC is licensed to practice law in the State of Arizona. This website is for informational purposes only and does not constitute legal advice.