Baton Rouge shooter with San Diego ties posted radical videos under name Cosmo Setepenra

SAN DIEGO (KUSI) — Information about 29-year-old Gavin Long — the shooter who killed three police officers in Baton Rouge — leads back to San Diego. Long was a former Marine who, at one point, was stationed in Miramar. Long legally changed him name to Cosmo Setepenra after being honorably discharged as a sergeant from the military in 2010. 

Several of his YouTube videos discussed "justice" being dealt to police officers. On Jul. 8 —the same day that officers were killed in Dallas — Setepenra posted two videos to his account discussing the murders. 

"It’s time for the men to start sacrificing," Long said. "With the brother, killing the police, you get what I’m saying. It’s justice. Listen; my religion is the religion of justice."

"If anything happens with me, because I’m an alpha male… I just want to let you all know, don’t affiliate me with nothing," Long says in one of the videos posted on Jul. 8. Long operated under the name Cosmo, producing podcasts, books, music and videos while frequenting Twitter. Race issues were a constant point of return for his dialogue. 

Officers Montrell Jackson, Matthew Gerald and Brad Garafola were killed in duty, according to CNN.

Law enforcement organizations from throughout San Diego County took to social media today to express their condolences over the shooting that killed three law enforcement officers in Baton Rouge, Louisiana.

There were also acknowledgements from the Chula Vista, Carlsbad and Oceanside police departments.

Categories: Local San Diego News