The assassination of Luis Donaldo Colosio Murrieta occurred on March 23, 1994 in Tijuana. The main suspect in the assassination, Mario Aburto Martínez, remains imprisoned since that year.

The Attorney General's Office relies on the theory of the “second shooter” and seeks an arrest warrant against the former agent of the defunct Center for Investigation and National Security (Cisen) Jorge Antonio Sánchez Ortega. The judicial history of the case can be told between special prosecutors and information that flows in a fragmented manner.