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Common Legal Defenses and Strategies for Murder Charges

Zak Newman, Attorney at Law June 3, 2025

Being charged with murder is a life-changing event. These cases are aggressively prosecuted, and a conviction can lead to decades in prison—or worse. A strategic defense is essential, with close attention to evidence, witness credibility, and how the law applies to the facts. A skilled murder defense attorney can help make sure every detail is considered.

Reach out to my firm, Zak Newman, Attorney at Law, if you're facing serious criminal charges. I work closely with clients to examine the facts of the case, identify possible defense strategies, and provide clear guidance throughout the legal process. My goal as your attorney is to help each person understand their legal options.

How Is Murder Defined?

Murder charges are divided into categories like first-degree murder, second-degree murder, and manslaughter. These classifications reflect intent, premeditation, and the surrounding circumstances. Knowing how the law defines each type is key to building a strong defense. A lesser charge can sometimes lead to a better outcome for the accused.

Each level of charge requires its own approach, so a criminal defense attorney must evaluate how the prosecution is framing the case. In some situations, challenging the degree of the charge can significantly impact sentencing exposure. This is especially true when intent is unclear or the situation unfolds rapidly. Legal definitions matter more than most people realize.

Establishing Reasonable Doubt

In a criminal trial, the burden is on the prosecution to prove guilt beyond a reasonable doubt. That standard leaves room for the defense to highlight uncertainty in the evidence or testimony. Small gaps in the timeline or unclear forensic results can influence a jury. Doubt, even if limited, can shift the outcome entirely.

At Zak Newman Attorney at Law, I carefully review the prosecution’s case to identify areas that may fall short of this high burden. Discrepancies between witness accounts or conflicting physical evidence often become focal points. A methodical review of everything presented is essential. The right questions can make the difference in how jurors view the case.

Claiming Self-Defense

In some cases, a person accused of murder may have acted to protect themselves or someone else. Self-defense laws vary by state, but they typically require a showing of imminent danger and a reasonable response. The facts must support that force was necessary to avoid serious harm or death. This defense can apply in both home and public situations.

It’s not enough to claim fear; the law requires specific circumstances to support the use of deadly force. That’s where evidence such as injuries, threats, or past incidents can come into play. A murder defense attorney will gather the necessary evidence, including witness testimony and physical evidence, to support a self-defense argument.

Proving Lack of Intent

Intent is a required element in many murder charges, particularly those involving premeditation. If the prosecution can’t show that the accused meant to kill, the charge could be reduced or dismissed altogether. This often comes up in cases involving accidents or split-second decisions. The line between murder and manslaughter may depend on intent alone.

To challenge intent, a murder defense attorney will examine the timeline, behavior before and after the incident, and anything suggesting the death wasn’t planned. Even emotionally charged reactions can affect how intent is interpreted. What happened in the moments leading up to the incident may be just as important as the act itself.

Challenging the Identification of the Accused

Mistaken identity is more common than people think, especially in high-stress situations. Witnesses may be sincere but wrong, and poor lighting, distance, or fear can impact memory. In some cases, the wrong person ends up charged based on shaky or incomplete identification. This is particularly risky in cases with no direct physical evidence.

To challenge identity, the defense may use surveillance footage, cellphone data, or testimony. Scientific evidence, like DNA or fingerprints, can also play a major role. When there's doubt about whether the right person was arrested, the case may begin to unravel. That’s why this defense is often worth pursuing early.

Presenting an Alibi

An alibi shows that the accused was somewhere else at the time the crime occurred. This defense can be powerful when supported by objective evidence. Documentation, receipts, digital timestamps, or witnesses can back up the timeline. The more consistent and verifiable the alibi, the stronger the defense becomes. Here are some common forms of alibi evidence:

  • Time-stamped digital records: This can include phone calls, GPS locations, text messages, or social media activity.

  • Receipts and surveillance footage: This can include purchases, restaurant visits, or ATM withdrawals.

  • Witness testimony: This can include co-workers, family members, or anyone else who saw the person. 

A well-documented alibi can seriously weaken the prosecution’s timeline. But it must be presented clearly and supported by reliable sources to carry weight.

Questioning the Validity of the Evidence

Every piece of evidence used in a criminal trial must meet legal standards for collection and handling. If evidence is obtained illegally or is mishandled, it may be excluded from the case. That can significantly limit what the prosecution can use at trial. Common examples include illegal searches or broken chains of custody.

A murder defense attorney will often file motions to suppress certain types of evidence. These legal challenges can happen before trial and may shift the balance of the case. Without key pieces of evidence, the prosecution may have trouble proving the charges. That’s why this strategy is frequently used in serious criminal cases.

Arguing Insanity or Mental Incompetence

Mental health can play a role in murder defense, though it's rarely a quick solution. An insanity defense generally requires proof that the accused didn't understand their actions were wrong. That bar is high and must be supported by a professional evaluation. These cases often involve long-term medical history and an intricate testimony.

Competency to stand trial is a separate issue, focusing on whether the person can participate in their defense. If someone is found incompetent, the case may pause until they're restored. Both defenses rely heavily on clinical evidence and detailed legal standards. They're most effective when supported by long-term documentation.

Exploring Plea Bargains and Charge Reductions

Not every case goes to trial. In some situations, plea deals offer a more controlled outcome for everyone involved. These agreements can lead to reduced charges or lighter sentencing in exchange for a guilty plea. It’s a calculated decision that must consider both legal risk and personal priorities. Plea negotiations may take several forms, such as:

  • Reduced charges: Downgrading a murder charge to manslaughter or another offense.

  • Agreed sentencing: Establishing a sentence range instead of leaving it open to the court.

  • Factual stipulations: Clarifying certain elements of the case to avoid harsher penalties.

Before deciding on a plea agreement, it's essential to consult with a murder defense attorney to fully understand the legal implications and make an informed choice. In these situations, it’s important to carefully weigh the potential benefits and risks of a plea agreement.

Contact a Defense Attorney Today

If you're facing murder charges, having an experienced attorney is crucial. At Zak Newman Attorney at Law, I serve Chattanooga, Tennessee, and the surrounding areas in Hamilton County, including Red Bank, East Ridge, and Collegedale. Contact me today to discuss your case and explore your legal options.