What is a First-Degree Involuntary Manslaughter Charge in Missouri?
First-degree involuntary manslaughter is defined as recklessly causing another person’s death. It is typically a Class C felony, but can be elevated depending on circumstances.
It may be charged as a more serious offense if:
- You have a prior DWI conviction
- Multiple people were killed
- The victim was not a passenger
- Your BAC was 0.18% or higher
- The victim was a law enforcement officer
Recklessness involves consciously disregarding a substantial and unjustifiable risk to others.
When you are facing life-changing penalties, following a first-degree involuntary manslaughter charge, Combs Waterkotte is prepared to defend your rights and protect your future. Speak to our St. Louis first-degree involuntary manslaughter lawyer today at (314) 900-HELP.
Penalties for First-Degree Involuntary Manslaughter in St. Louis
Penalties vary depending on the classification:
- Class C felony: 3–10 years in prison and fines up to $10,000
- Class B felony: 5–15 years in prison
- Possible driver’s license suspension in vehicular cases
- Mandatory minimum sentences in intoxication-related cases
What Happens After an Arrest in St. Louis?
After an arrest, you can expect the following:
- Bond hearing within 24–48 hours
- Arraignment
- Preliminary hearing
- Pre-trial motions and discovery
- Trial or plea negotiations
- Sentencing, if convicted
- Appeals
What to Do After Being Charged
If you are charged, take these steps immediately:
- Do not speak to law enforcement without an attorney
- Do not post about your case on social media
- Do not consent to searches
- Do not contact the victim’s family
- Request legal counsel immediately
How Prosecutors Prove the Charge
The prosecution must prove beyond a reasonable doubt that you recklessly caused another person’s death. This includes:
- Establishing reckless behavior
- Proving direct causation
- Presenting evidence such as witnesses or expert testimony
Prior conduct such as DWI or reckless driving may be used to show a pattern.
Available Defenses
Depending on your case, defenses may include:
- Lack of recklessness
- No direct causation
- Another party was responsible
- Mechanical failure
- Insufficient evidence
- Self-defense
- Constitutional violations (illegal search or Miranda violations)
- Alibi or mistaken identity
Getting Charges Reduced or Dismissed
We will challenge the key elements that the prosecution has to prove and fight to get your charges reduced or dismissed. Even if a dismissal is unlikely in your case, we may be able to get your charges reduced to a lesser offense such as:
- Second-degree involuntary manslaughter
- Other non-homicide, lesser offenses depending on the facts
Undermining recklessness or causation are two particularly effective strategies. When these elements cannot be proven beyond a reasonable doubt, it becomes much more difficult to sustain a conviction.





