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Manslaughter Defense Lawyer in Southern Illinois

Hire Combs Waterkotte When Everything Is at Stake

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Last Updated: March 9, 2026

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Manslaughter Defense Lawyer in Southern Illinois

Manslaughter Defense Lawyer in Southern Illinois

Homicide is one of the most serious crimes a person can commit. However, not all homicides are treated the same. You could face decades in prison upon a conviction for manslaughter.

The Southern Illinois manslaughter defense attorneys at Combs Waterkotte have more than 60 years of combined legal experience helping clients accused of murder and manslaughter. We can tailor a defense to your homicide charges to seek a positive outcome to your case.

Call our manslaughter defense team in Southern Illinois today at (314) 900-HELP or reach out online for a free, confidential consultation.

Degrees of Homicide in Southern Illinois

Degrees of Homicide in Southern Illinois

Homicide occurs when one person causes another person’s death. Not all homicides are criminal offenses. Soldiers, police officers, and people defending themselves have the legal justification to kill in certain circumstances.

When someone lacks the legal justification to kill, however, they may face criminal charges. The severity of these charges can vary depending on many factors.

Common law only had two homicide offenses. Murder occurred when someone killed with malice aforethought or during the commission of another felony. “Malice aforethought" usually meant premeditation or the intention to kill or seriously injure. Murder was—and still is—the most serious homicide charge. Manslaughter occurred when someone committed murder but acted in the heat of passion due to an adequate provocation.

The classic example is a homicide committed by a husband or wife when they arrive home to find their spouse in bed with another person. Under the common law, such a killing would likely constitute manslaughter rather than murder.

Manslaughter also included homicides that resulted from gross recklessness. This legal standard typically required proof that the accused consciously disregarded a known risk. Thus, someone might commit manslaughter if they killed another person while street racing.

Understanding Manslaughter Statutes in Illinois

Understanding Manslaughter Statutes in Illinois

Illinois uses a slightly different classification for homicides. Many states divide manslaughter into voluntary and involuntary manslaughter. Illinois does not. It classifies many acts that would constitute voluntary manslaughter in other states as second-degree murder.

Consequently, the only offenses in Illinois called “manslaughter” are involuntary manslaughter and voluntary manslaughter of an unborn child. A prosecutor may consider seeking charges under the following statutes after a homicide other than first-degree murder:

Second-Degree Murder in Southern Illinois

Second-Degree Murder in Southern Illinois

Second-degree murder happens when someone commits first-degree murder, but one of the following conditions applies:

  • The accused acted in the heat of passion due to a serious provocation
  • The accused unreasonably and mistakenly believed they were acting in self-defense

The term “serious provocation” is an objective standard. In other words, it isn’t enough that the accused thought they were being provoked. Instead, their criminal defense must include evidence that a reasonable person would have experienced a serious provocation in the same situation. The state specifically excludes the disclosure or discovery of the victim’s sexual orientation as grounds for a serious provocation.

A related charge is voluntary manslaughter of an unborn child. This charge requires proof of the same elements as second-degree murder; however, the victim is an unborn child.

Involuntary Manslaughter Southern Illinois

Involuntary Manslaughter Southern Illinois

Someone commits involuntary manslaughter when they unintentionally kill by recklessly performing an act likely to cause great bodily injury or death. When the act involves the operation of a motor vehicle, the term “reckless homicide” is used in place of “involuntary manslaughter.”

Imagine someone who accidentally discharges a loaded gun while cleaning it. They thought the weapon was unloaded but failed to check. If someone else suffers a gunshot wound and dies, the person may face involuntary manslaughter charges.

On the other hand, a motorcyclist who kills a pedestrian while traveling 120 miles per hour on a city street may face reckless homicide charges under the same statute.

Illinois has a separate statute that creates an offense called involuntary manslaughter of an unborn child. This offense has the same elements as involuntary manslaughter, but the victim is an unborn child, regardless of its gestational age.

Notably, deaths that result from DUI generally aren’t classified as reckless homicide. Instead, they fall under a charge called aggravated DUI in Southern Illinois.

Drug-Induced Homicide in Southern Illinois

Drug-Induced Homicide in Southern Illinois

Charges for drug-induced homicide can be filed against anyone who unlawfully delivers a controlled substance to someone who dies as a result of using it. Put another way, a suspect can face drug-induced homicide for supplying drugs that cause an overdose death.

To qualify as a “delivery,” the transfer of the substance must violate the drug laws of Illinois or any other jurisdiction.



Manslaughter Defense Lawyer Southern Illinois | Combs Waterkotte

Possible Defense Strategies in Southern Illinois Manslaughter Cases

Possible Defense Strategies in Southern Illinois Manslaughter Cases

Our attorneys may be able to raise several robust defenses to manslaughter charges. Possible criminal defense strategies in your Southern Illinois case might include the following:

Alibi Defense

An alibi establishes that you couldn’t have committed the crime. For example, a cell phone video might prove that you were with your family in another town when the homicide occurred.

Self-Defense, Defense of Others, and Home Defense in Southern Illinois

Illinois law allows you to use deadly force in the following circumstances:

To use this defense, you must be able to demonstrate that you reasonably believed deadly force was necessary to protect yourself or someone else from the imminent use of force. You also have the right to use deadly force against someone unlawfully attempting to enter your home or who is already inside your home.

Battered Spouse Syndrome Defense in Southern Illinois

Battered spouse syndrome isn’t necessarily a defense. Rather, you can invoke it in combination with self-defense to establish a reasonable belief about the victim’s imminent use of force. That is, you can use the victim’s history of violence against you to explain why you thought you were in imminent danger.

Penalties for a Manslaughter Conviction in Southern Illinois

Penalties for a Manslaughter Conviction in Southern Illinois

Like other violent crimes, manslaughter and related charges carry stiff penalties, including the following:

Offense Offense Level & Possible Punishment
Drug-induced homicide Class X felony; 6 to 30 years in prison
Second-degree murder Class 1 felony; 4 to 20 years in prison
Voluntary manslaughter of an unborn child Class 1 felony
Reckless homicide (any of the following):
  • Occurred on a public road with a school crossing guard and killed two or more people
  • Occurred in a road construction/maintenance zone and killed two or more people
  • Two or more deaths when driver failed to move over under the “Move Over” law
Class 2 felony; 6 to 28 years in prison
Reckless homicide (any of the following) or involuntary manslaughter where the victim was a household member:
  • Occurred on a public road with a school crossing guard
  • Occurred in a road construction/maintenance zone
  • Death occurred when driver failed to move over under the “Move Over” law
Class 2 felony; 3 to 14 years in prison
Reckless homicide / involuntary manslaughter (special victims/circumstances):
  • Vehicle became airborne and killed two or more people
  • Victim was a peace officer performing duties (involuntary manslaughter or reckless homicide)
  • EMS worker or firefighter killed when driver failed to move over
Class 2 felony; 3 to 7 years in prison
Involuntary manslaughter (general) / involuntary manslaughter of an unborn child / reckless homicide (general) / reckless homicide of an unborn child Class 3 felony

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How a Southern Illinois Manslaughter Defense Lawyer Can Help
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How a Southern Illinois Manslaughter Defense Lawyer Can Help

If you’ve been arrested for involuntary manslaughter, reckless homicide, or any form of unlawful killing in Southern Illinois, your next steps are critical. These cases move fast, the stakes are life-changing, and prosecutors will work aggressively to secure a conviction. You need a defense team with the experience, resources, and courtroom skill to protect your freedom.

Why You Should Hire Combs Waterkotte in Southern Illinois

Why You Should Hire Combs Waterkotte in Southern Illinois:

  • Former prosecutors who understand how the state builds manslaughter and reckless homicide cases—and how to dismantle their theories before they gain traction.
  • Comprehensive representation from jail visits, bond hearings, and negotiation stages to trial preparation, media management, and support for families navigating the process.
  • Defense strategies grounded in forensic science, accident reconstruction, toxicology, digital evidence, and witness credibility to challenge every element the state must prove.
  • Aggressive pre-trial motion practice targeting illegal stops, unconstitutional interrogations, flawed lab testing, and unreliable police procedures to weaken the case before trial.
  • Proven courtroom strength—our attorneys are known in Southern Illinois courts for their preparation, fearlessness, and ability to persuade juries in high-stakes cases.
  • Mastery of Illinois homicide and manslaughter laws, including distinctions between involuntary manslaughter, reckless homicide, aggravated factors, and lawful self-defense.
  • Access to top forensic experts and investigators who can challenge the prosecution’s conclusions, reconstruct events, and uncover evidence overlooked by law enforcement.
  • Clear communication and client-focused service so you always understand the strategy, timeline, and next steps. You’re never left guessing about the status of your case.
  • Murder 1st and ACA

    Charge

    Murder 1st

    Result

    Not Guilty Verdict

    Combs Waterkotte represented a Northeast Missouri man on charges of 1st degree murder and armed criminal action in Adair County, Missouri. The prosecution all …

    Charge

    Murder 1st

    Result

    Not Guilty Verdict

  • 2nd Degree Murder and ACA

    Charge

    Murder 2nd

    Result

    Dismissed

    Combs Waterkotte represented a North City man on charges of murder in the second degree, burglary, and two counts of assault. The state charged our client und …

    Charge

    Murder 2nd

    Result

    Dismissed

  • First Degree Murder and ACA

    Charge

    Murder 1st

    Result

    Reduced - 13 Years Incarceration

    In this case, our client had an armed criminal action (ACA) charge and a charge of first degree murder. We were able to avoid going to trial for this client b …

    Charge

    Murder 1st

    Result

    Reduced - 13 Years Incarceration

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    Why Choose Combs Waterkotte for Your Manslaughter Case in Southern Illinois?

    Why Choose Combs Waterkotte for Your Manslaughter Case in Southern Illinois?

    Combs Waterkotte has handled more than 10,000 criminal defense cases since the firm’s founding. We’ve defended people facing all types of charges, including murder and manslaughter.

    Our attorneys include former prosecutors who understand the state’s motivation in bringing these cases. We can often use this experience to identify ways to obtain favorable results. For example, in some situations, we may be able to negotiate a plea down from murder to manslaughter. In other cases, we may be able to convince a prosecutor or jury that your acts either didn’t cause the death or didn’t rise to the level of manslaughter.

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    How We Can Defend You From Southern Illinois Manslaughter Charges

    How We Can Defend You From Southern Illinois Manslaughter Charges

    Manslaughter charges are often the result of complicated and confusing situations. A fight, an automobile collision, or some other reckless act might lead to an arrest and prosecution for manslaughter. We’ll start by hearing your side of the story. Once we have the full picture, we’ll launch our own investigation. We’ll review the prosecution’s evidence, interview witnesses, and identify others who might shed additional light on the case.

    We’ll present whatever exculpatory and mitigating evidence we uncover to the prosecution. During this process, our attorneys will work diligently to persuade prosecutors to dismiss the charges or offer a fair plea bargain.

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    Contact Combs Waterkotte to Start Your Manslaughter Defense in Southern Illinois

    Contact Combs Waterkotte to Start Your Manslaughter Defense in Southern Illinois

    Although manslaughter is less severe than murder, you may still face decades in prison upon conviction. The lawyers at Combs Waterkotte can present defenses, including self-defense, to fight for your freedom. Contact us online or call (314) 900-HELP to learn more about how we can get you the best possible outcome in Southern Illinois.

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