How many years in prison do you get for a DUI that kills someone in Colorado? Vehicular homicide involving DUI is a Class 3 felony with a presumptive sentence of four to 12 years in state prison.
The exact sentence depends on the crash, the defendant’s record, injuries to others, and any aggravating or mitigating circumstances. A recent Colorado case shows how those factors can affect the outcome.
In April 2026, Jian Bin Chen was sentenced to 12 years after pleading guilty to charges arising from a wrong-way crash on Interstate 70 in Wheat Ridge. The crash killed 36-year-old Jody Weber and injured her two-year-old son. Chen had a prior alcohol-related driving conviction and pleaded guilty to both DUI-based and reckless-driving vehicular homicide charges. His sentences ran concurrently.
What Is the Difference Between Vehicular Homicide and DUI Manslaughter in Colorado?
Colorado does not formally use the term “DUI manslaughter” for a fatal impaired-driving offense. The charge is generally vehicular homicide under C.R.S. § 18-3-106.
To convict someone of vehicular homicide involving DUI, prosecutors must prove that the person drove under the influence of alcohol, drugs, or both and that the conduct proximately caused another person’s death.
The offense is a strict liability crime. Prosecutors do not have to prove that the driver intended to hurt anyone or consciously chose to cause a crash. They must still prove impairment and causation.
Causation may be contested when another driver’s actions, road conditions, mechanical failure, or a medical event contributed to the collision. Witness accounts, vehicle data, toxicology testing, and accident reconstruction can all affect whether the state proves its case.
How Many Years in Prison Do You Get for Vehicular Homicide DUI in Colorado?
Under Colorado’s felony sentencing framework, vehicular homicide involving DUI carries a presumptive sentence of four to 12 years in the Colorado Department of Corrections, followed by mandatory parole.
Before imposing a sentence, a judge may review the presentence investigation, the defendant’s criminal and driving history, statements from the victim’s family, treatment efforts, acceptance of responsibility, and the conduct that caused the crash.
Wrong-way driving, excessive speed, a high blood alcohol concentration, injuries to additional victims, leaving the scene, or a prior DUI may support a harsher sentence. The Wheat Ridge crash occurred in Jefferson County, where Chen’s prior DUI, wrong-way driving, the fatality, and the injury to a child were significant sentencing factors. The court ultimately imposed a 12-year sentence at the top of the standard Class 3 felony range.
The number of victims also matters. Prosecutors may file a separate vehicular homicide count for each death and vehicular assault charges for serious injuries. Whether sentences run concurrently or consecutively can substantially change the total time imposed.
What Is the Difference Between DUI and Reckless Vehicular Homicide in Colorado?
Colorado law recognizes several forms of vehicular homicide, and the distinction between DUI and DWAI affects how the offense is classified.
Vehicular homicide involving DUI is a Class 3 felony. Prosecutors must prove impairment and causation, but they do not have to separately prove recklessness.
Vehicular homicide based on reckless driving is a Class 4 felony. It requires proof that the defendant consciously disregarded a substantial and unjustifiable risk. Vehicular homicide involving DWAI is also a Class 4 felony and applies when alcohol or drugs affected the driver’s ability to operate safely to the slightest degree, but the evidence does not establish DUI.
Prosecutors may file charges under more than one theory. A wrong-way crash, for example, may support a DUI-based count because of intoxication and a reckless-driving count because of the decision to enter opposing traffic.
What Factors Make a DUI Charge a Felony in Colorado?
A DUI can become a felony because of the harm caused or the defendant’s prior record.
When impaired driving proximately causes a death, the driver may face Class 3 felony vehicular homicide even with no prior DUI convictions. When it causes serious bodily injury, the charge may be a Class 4 felony vehicular assault.
An ordinary DUI may also become a Class 4 felony when the defendant has at least three qualifying prior impaired-driving convictions from separate criminal episodes. Prior convictions can therefore affect both the charge and the sentence.
Can a DUI Lawyer Reduce a Vehicular Homicide Charge in Colorado?
A lawyer cannot guarantee that prosecutors will dismiss or reduce a vehicular homicide charge. The defense may still have several areas to challenge.
The state must prove that the defendant drove the vehicle, was legally under the influence, and proximately caused the death. A defense attorney may examine DUI blood-testing evidence, including the blood draw, laboratory procedures, chain of custody, and toxicology results, along with body-camera footage, witness statements, vehicle data, and accident reconstruction.
Depending on the evidence, negotiations may focus on reducing a Class 3 DUI-based charge to Class 4 vehicular homicide involving DWAI or reckless driving. A lawyer may also seek dismissal of additional counts, concurrent sentencing, or a sentence toward the lower end of the range.
Defense work also matters after a guilty plea or conviction. Treatment records, expert evaluations, remorse, restitution efforts, and evidence of rehabilitation may influence the sentence.
What Happens if I Caused a Fatal Car Accident While Drunk in Colorado?
A person suspected of causing a fatal impaired-driving crash may be detained, questioned, chemically tested, and charged with multiple offenses. Avoiding common mistakes after a DUI arrest is especially important because statements made at the scene may later be used as evidence, even when the person is injured or disoriented.
Do not try to explain the crash to investigators, the victim’s family, an insurance company, or on social media without legal advice. Preserve photographs, messages, receipts, vehicle records, and location data that may be relevant. An attorney can begin investigating while the evidence is still available.
The consequences may include prison, parole, restitution, fines, alcohol treatment, and loss of driving privileges. The outcome depends on the evidence, the charges, the defendant’s history, and the strategy developed from the start.
Speak With a Colorado Vehicular Homicide Defense Attorney
Vehicular homicide involving DUI is one of the most serious driving offenses prosecuted in Colorado. The difference between DUI, DWAI, and reckless-driving allegations can change the felony classification and years of potential incarceration.
MBS Law represents clients facing serious DUI and vehicular homicide charges throughout Colorado. Contact us to schedule a confidential consultation and discuss the evidence, sentencing exposure, and defense options in your case.
