Arrested or Charged with Murder in the Second Degree (C.R.S. § 18-3-103) in Colorado

Facing Murder in the Second Degree Charges? Here’s What You Need to Know

Few words hit harder than “murder charge.” If you’ve been arrested or charged with murder in the second degree in Colorado, your life just changed in an instant.

The stakes could not be higher—decades in prison, a permanent felony record, and everything you value on the line. Before you say or do anything else, you need clarity on what you’re facing and how to protect yourself.

What Colorado Law Says About Murder in the Second Degree

Under Colorado Revised Statutes § 18-3-103, murder in the second degree means:

• Knowingly causing someone’s death. This isn’t an accident—the law says you acted knowing your actions were practically certain to cause death.
• A death during a felony. If you were committing or trying to commit certain serious felonies (arson, robbery, burglary, kidnapping, sexual assault, escape), and someone dies because of it—even if you didn’t intend it—the law can hold you responsible.

There’s a limited affirmative defense if you were just present for the underlying crime, didn’t cause the death, weren’t armed, and had no reason to believe someone else would do serious harm. But that defense is narrow and hard to prove without skilled legal help.

And one thing the law makes very clear: you can’t claim intoxication as a defense. If you were drunk or high, it doesn’t excuse the act.

The Penalties for Second-Degree Murder Charges in CO

Second-degree murder is one of the most serious felonies in Colorado.

• Class 2 Felony: Typically punishable by 16 to 48 years in prison, plus hefty fines.
• Class 3 Felony (Heat of Passion): If the act happened in a sudden heat of passion caused by a highly provoking act of the victim, the penalty may drop to 4 to 12 years. But there must be no cooling-off period, and the law does not allow “heat of passion” based on the victim’s gender identity, sexual orientation, or an unwanted non-forcible advance.

A conviction means:

• A lifelong felony record
• Loss of civil rights like voting and owning firearms
• Mandatory sentencing under C.R.S. § 18-1.3-406, with little room for leniency

This is a charge that can follow you forever, even after prison time.

Defenses That Can Save You From a Murder Conviction

Every case is different, but common defense strategies for murder in the second degree include:

1. Self-Defense or Defense of Others

If you acted to protect yourself or someone else from imminent deadly harm, Colorado law recognizes your right to defend yourself.

2. Lack of Intent or Knowledge

The prosecution must prove you acted knowingly. If the death was an unforeseeable accident, this could undermine their case.

3. Affirmative Defense in Felony Murder

If you didn’t commit the homicidal act, weren’t armed, and had no reason to believe anyone would be harmed, you may have a legal defense under subsection (1.5).

4. Mistaken Identity or Weak Evidence

If the state can’t prove beyond a reasonable doubt that you caused the death, charges can be reduced or dismissed.

5. Violations of Your Rights

If police obtained evidence illegally or violated your constitutional rights, that evidence can be thrown out—sometimes dismantling the entire case.

A skilled criminal defense lawyer will dig into every detail: witness credibility, forensic evidence, police reports, and procedural errors that could turn the tide in your favor.

What to Do Immediately After an Arrest

When you’re facing a murder charge, every move counts.

• Say nothing. Anything you say can be twisted and used against you. Stay silent until you have a lawyer.
• Ask for a lawyer right away. This is your right. Use it.
• Don’t talk to witnesses or victims’ families. It can be seen as intimidation, even if that’s not your intent.
• Preserve evidence. Give your attorney anything that may help your case.
• Don’t consent to searches. Unless officers have a warrant, you don’t have to let them search your home or belongings.

Why Your Choice of Lawyer Matters More Than Anything

Colorado prosecutors are relentless in homicide cases. They will use every tool they have to secure a conviction and maximum sentence. You need someone equally relentless in your corner.

A strong criminal defense lawyer will:

• Investigate every detail of your case
• Challenge weak or unreliable evidence
• Build a strategy tailored to your situation
• Negotiate for reduced charges or alternative outcomes where possible
• Defend you fiercely in court, if it comes to trial

This isn’t just about avoiding prison—it’s about fighting for your future and everything you care about.

Final Word

Being charged with murder in the second degree (C.R.S. § 18-3-103) in Colorado is a turning point in your life. The law is harsh, the stakes are massive, and you cannot afford to face this alone.

Call a trusted Colorado criminal defense lawyer immediately. The sooner you get experienced legal counsel on your side, the more options you may have to protect your freedom and your future.

Disclaimer: This content is for informational purposes only and does not constitute legal advice. If you are facing second-degree murder charges in Colorado, speak to a qualified criminal defense attorney right away.