Alleged slayer of Marc Brock indicted by Caddo Grand Jury

The Grand Jury of Caddo Parish returned two indictments against a man accused of slaying a Caddo Parish law enforcement officer last year in its session that concluded Tuesday, February 10, 2026.

Vivian man Nicholas Edward Alexander, 58, stands charged with first-degree murder in connection with the November 14, 2025 slaying of Marc Tyler Brock, who was shot while he took part in an attempt to serve an arrest warrant against Alexander.

Caddo Sheriff's reports state that when officers arrived at a residence in the 1700 block of North Pine Street in Vivian to serve the warrant, multiple shots were fired through the closed door. Officer Brock, 25, was transported to North Caddo Medical Center, where he later died.

Alexander also was indicted on three misdemeanor charges of cyberstalking, alleging that on or about November 10, 2025, he used electronic mail or other electronic communications to threaten, harass or terrify three separate individuals. 

Alexander remains in custody at Caddo Correctional Center, with no bond set.