Murder Defense Attorney in Louisiana

Written by Jarrett Ambeau, trial attorney, court-qualified forensic DNA expert, and lead counsel at The Ambeau Law Firm.

What does a murder defense attorney do in Louisiana? A murder defense attorney stands between you and the state at every stage, from the first interrogation through trial. In Louisiana, where murder means mandatory life or a possible death sentence, the lawyer’s job is to force the state to prove each element and to expose the weaknesses in its case.

A murder charge is the most serious accusation a person can face. The penalties are fixed by statute and they are severe: mandatory life for second degree murder, and death or life for first degree murder. When that much is on the line, who defends you, and how early they get involved, matters more than almost anything else.

I am Jarrett Ambeau. I have tried more than sixty felony jury trials to verdict, and I am a court-qualified forensic DNA expert. Murder cases turn on the reliability of the evidence, and that is exactly where I focus.

Quick answers

• The charges: first degree murder (La. R.S. 14:30) and second degree murder (La. R.S. 14:30.1).
• The penalty: death or life for first degree; mandatory life without parole for second degree.
• The key issue: whether the state can prove intent, or the underlying felony, beyond a reasonable doubt.
• What to do first: say nothing to police and get a trial lawyer involved immediately.

What a murder defense involves in Louisiana

Murder cases are built on layers of evidence: statements, forensics, timelines, and witnesses. Each layer can be tested. A serious defense means examining how the police obtained statements, whether searches were lawful, and whether the forensic analysis actually supports the conclusions the state draws from it.

What the state has to prove

For any murder conviction, the state must prove its theory beyond a reasonable doubt:

• Identity. That you, and not someone else, caused the death.
• Intent or a qualifying felony. Either specific intent to kill or to inflict great bodily harm, or a death during a listed felony.
• Causation. That your act, not an independent cause, brought about the death.
• For first degree, an aggravating factor. One of the specific circumstances listed in La. R.S. 14:30.

What happens after a murder arrest in Louisiana?

Say a man named Marcus is arrested. Within seventy-two hours he has an initial appearance where bond is addressed, and in a murder case it may be denied. Because the offense is punishable by death or life, the state has 120 days to indict if he stays in custody. Then arraignment, the motions phase, and trial. The motions phase, where searches, statements, and forensic evidence are tested, is where much of the real work happens.

What are the defenses to a murder charge?

The defenses that come up most often include:

• Misidentification. Challenging eyewitness identification and the chain of evidence linking the accused to the death.
• No specific intent. Attacking the intent element, which can support a lesser verdict such as manslaughter.
• Self-defense. A justified killing is not murder, and the state must prove it was not justified.
• Challenging the forensic proof. Testing DNA, ballistics, and cause-of-death conclusions.
• Suppressing unlawful evidence. Excluding statements or searches obtained in violation of your rights.

How we defend a murder case

Because I am a court-qualified forensic DNA expert, I read the scientific evidence the way an analyst does, not the way a summary report presents it. Where the state leans on DNA, ballistics, or a confession, that is where a murder case is often won or lost. You can read more on our forensic DNA page.

We also do the ground work: we gather the evidence, talk to witnesses, and visit the scene. With more than sixty felony jury trials to verdict behind us, we prepare every case as if it will be tried, because that is what creates leverage. It is what we do here at The Ambeau Law Firm.

Frequently asked questions

What does a murder defense attorney do in Louisiana?

A murder defense attorney protects the accused at every stage: advising them to stay silent, fighting bond, testing how evidence was gathered, challenging forensic proof, and preparing the case for trial. In Louisiana, where murder carries mandatory life or death, the lawyer’s job is to force the state to prove every element and to expose the weaknesses in its case before a jury.

How much does a murder defense lawyer cost in Louisiana?

Fees depend on the complexity of the case, the volume of forensic evidence, and whether it goes to trial. A murder case involves far more investigation, expert work, and court time than most charges, so it cannot be quoted like a routine matter. The best step is a direct conversation about your specific situation so the scope and structure can be explained clearly.

Is murder a capital offense in Louisiana?

First degree murder under La. R.S. 14:30 can be, when the district attorney seeks a capital verdict; the penalty is death or life without parole. Second degree murder under La. R.S. 14:30.1 carries mandatory life without parole. Because of what is at stake, a murder case should be handled by a lawyer with real jury trial experience from the very beginning.

What should I do if I am being investigated for murder?

Say nothing to police and contact a trial lawyer immediately. Do not try to explain, correct the record, or cooperate on your own. Statements made without counsel are one of the most common ways a serious case gets worse. Everything you say can be used, and once said it cannot be taken back. Get a lawyer between you and the investigators.

Talk to a Louisiana murder defense attorney

A few quick questions help us understand your situation: Has an arrest already happened? Is the case in state or federal court? Does the evidence involve forensic or DNA testing? If you or a loved one is facing a murder charge or investigation, do not wait. Check Jarrett’s availability for your case or call 225-330-7009.

Louisiana statute reference

Murder is charged under La. R.S. 14:30 (first degree) and La. R.S. 14:30.1 (second degree). Statutes change, so verify the current text at the Louisiana State Legislature. First degree murder requires specific intent to kill or inflict great bodily harm joined with a listed aggravating factor, and may be punished by death or life. Second degree murder covers an intentional killing, a felony murder, or a drug-distribution death, and carries life imprisonment at hard labor without benefit of parole, probation, or suspension of sentence.

Source: La. R.S. 14:30 and 14:30.1, as amended through Acts 2025, No. 343.

Related resources: learn about defending a second degree murder charge, or meet the attorneys at The Ambeau Law Firm.