Authorities took to social media to honor the memory of Senior Corporal Mark Timothy Nix, who fell in the line of duty on March 23, 2007. According to a post on the Dallas Police Department's official Facebook page, Senior Corporal Nix was shot and killed during the chase of a murder suspect nearly two decades ago, marking a somber anniversary for the Dallas Police community.

At age 33, Nix was part of a critical operation that reflects the dangers law enforcement officers confront regularly. His seven years of service were characterized by a devotion that ultimately demanded the ultimate sacrifice, and his loss remains a poignant reminder of the risks police officers take to protect the public.

Senior Corporal Nix's legacy continues to resonate within the department, and the post included the hashtags #EndOfWatch and #DallasPD, symbols of the fraternity among law enforcement, and the respect his memory commands.