No charges will be filed against a 7-Eleven security guard who shot and killed a man in August after the two fought over a gun outside an Aurora convenience store, prosecutors announced Monday. A video released by the 17th Judicial District Attorney’s Office shows 36-year-old Vernon Dorsey rushing up behind the unidentified security guard outside the Aurora 7-Eleven, holding a gun to his head and pushing him up against the wall. The security footage has no sound, but Dorsey demanded the security guard’s gun and threatened to kill him, according to a news release from the district attorney’s office. In a fight that lasted just over 30 seconds, the two grappled over the gun until the security guard shot Dorsey once in the chest, the video shows. Aurora police officers responded to the convenience store shooting in the 12000 block of East Colfax Avenue just after 9 p.m. Aug. 31, police said. Aurora police officers treated Dorsey when they arrived on scene, but he later died from his injuries at a hospital, the news release said. Related Articles Crime and Public Safety | Broomfield girl missing since Saturday, last known to be in south Denver Crime and Public Safety | Judge appoints new DA after Linda Stanley disbarred for misconduct in Barry Morphew murder case Crime and Public Safety | I-70 reopens after full closure near Vail for crash Crime and Public Safety | Man dead, 3 injured in 4 separate shootings across Denver on Sunday Crime and Public Safety | Two Tren de Aragua gang members arrested in Aurora on charges tied to Texas murder After a months-long investigation, the 17th Judicial District Attorney’s Office and the Aurora Police Department determined the security guard fired his weapon in self-defense and was “legally justified” in his use of force, DA officials said in the release. The security guard will not be arrested or charged in the fatal shooting, DA officials said. Sign up to get crime news sent straight to your inbox each day.