Caddo Grand Jury indicts man accused of killing law enforcement officer

58-year-old Nicholas Edward Alexander faces first-degree murder and cyberstalking charges

Published on Feb. 10, 2026

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The Grand Jury of Caddo Parish has returned two indictments against 58-year-old Nicholas Edward Alexander of Vivian, Louisiana. Alexander is accused of killing a Caddo Parish law enforcement officer, Marc Tyler Brock, in November 2025 while Brock was trying to serve an arrest warrant. Alexander was also indicted on three misdemeanor charges of cyberstalking.

Why it matters

The killing of a law enforcement officer in the line of duty is a serious and tragic event that raises concerns about public safety and the challenges officers face when serving warrants. The additional cyberstalking charges suggest a pattern of threatening behavior by the suspect prior to the fatal incident.

The details

According to authorities, on November 14, 2025, Officer Brock, age 25, arrived at Alexander's home in Vivian, Louisiana to serve an arrest warrant. Multiple shots were fired through the closed door, striking and killing Brock. He was transported to a hospital but later died from his injuries. Alexander was indicted on three misdemeanor counts of cyberstalking, alleging he used electronic communications to threaten, harass, or terrify three separate individuals around November 10, 2025.

  • On November 14, 2025, Officer Brock was killed while trying to serve an arrest warrant on Alexander.
  • On or about November 10, 2025, Alexander allegedly committed three counts of cyberstalking.

The players

Nicholas Edward Alexander

A 58-year-old man from Vivian, Louisiana who has been indicted on first-degree murder charges for the killing of a law enforcement officer, as well as three misdemeanor counts of cyberstalking.

Marc Tyler Brock

A 25-year-old Caddo Parish law enforcement officer who was killed while trying to serve an arrest warrant on Alexander.

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What’s next

The judge will determine if Alexander will be allowed bail as the case proceeds.

The takeaway

This tragic incident highlights the dangers law enforcement officers face when serving warrants, as well as the potential escalation of threatening behavior online leading to violent acts. It raises important questions about public safety, warrant procedures, and the need for comprehensive approaches to address patterns of harassment and violence.