First Degree vs. Second Degree Murder in Louisiana: Charges, Sentences, and Defenses

Families hear “murder charge” and assume the worst, but Louisiana law draws sharp lines between first degree murder, second degree murder, and the lesser homicide charges, and those lines decide what a person is actually facing. Understanding the difference is the first step in understanding the defense. David E. Stanley has defended homicide and violent felony cases across Louisiana since 1983.

First Degree Murder: Intent Plus an Aggravating Circumstance

First degree murder in Louisiana requires specific intent to kill or inflict great bodily harm combined with an aggravating circumstance defined by statute: killing during certain felonies, killing a police officer or firefighter, killing more than one person, killing for hire, and other listed factors. It carries the harshest punishment Louisiana imposes, up to and including capital exposure in qualifying cases. Because so much turns on the aggravating element, a central defense question is whether the state can actually prove that element, not just the killing itself.

Second Degree Murder: The Mandatory Life Charge

Second degree murder covers specific intent killings without a listed aggravating factor, and it also covers killings that happen during certain felonies even without any intent to kill, the rule commonly called felony murder. A conviction carries mandatory life imprisonment without parole, probation, or suspension of sentence. There is no sentencing discretion to argue about after conviction, which is why these cases are fought at the level of the charge itself: what can the state prove about intent, participation, and the underlying felony?

Where Manslaughter and the Lesser Homicides Fit

Below the murder charges sit manslaughter, negligent homicide, and vehicular homicide, each with its own elements and dramatically lower sentencing ranges. The difference between second degree murder and manslaughter can be the difference between mandatory life and a term of years. We cover that line in detail in our comparison of manslaughter and murder, and it is often where the real fight in a Louisiana homicide case takes place.

Why the Charge Is Not Fixed

The district attorney chooses the charge, and grand juries in Louisiana must act in capital and life cases. Charges get upgraded when new evidence appears and reduced when the proof weakens. Effective defense work in the early months aims directly at that decision: challenging identifications, testing the forensic story, locating witnesses the police did not interview, and showing the state the weaknesses in its theory while the charging decision is still moving. If the arrest just happened, our guide to the first 48 hours after a murder charge covers the immediate steps.

What a Defense Actually Looks Like

Homicide defenses are built, not found. Identity: was it the accused at all? Intent: can the state prove what was in a person’s mind? Justification: was this self-defense under Louisiana law? Participation: being present is not the same as being a principal. Each theory demands its own investigation, and the right one usually emerges only after the evidence has been tested piece by piece.

The Grand Jury’s Role in Murder Cases

In Louisiana, charges that carry death or mandatory life must be brought by grand jury indictment rather than by the district attorney’s bill alone. The grand jury hears only the state’s side, and the defense does not participate, but the indictment stage still matters to the defense calendar: it fixes the charge the state has committed to, starts the clock on key motions, and signals how the prosecution reads its own evidence. An indictment for second degree murder rather than first, or for manslaughter rather than murder, tells you something about the case the state believes it can prove.

Principals, Accessories, and Being in the Wrong Car

Louisiana’s principal doctrine allows the state to charge people who did not pull a trigger: drivers, lookouts, participants in an underlying felony that turned deadly. Some of the hardest-fought homicide cases involve exactly this, a person present at a scene the state treats as a participant. Whether someone “was concerned in the commission” of a crime is a legal and factual battleground, and it deserves its own defense rather than a plea made in fear of the murder label.