Forensic technicians and police officers work at the crime scene where Mexican social media influencer Cesar Gastelum was shot and killed while livestreaming with friends outside a fast-food restaurant in Culiacan, Sinaloa state, Mexico, August 4, 2026. REUTERS/Jesus BustamanteMEXICO CITY — Mexican social media influencer Cesar Gastelum was shot and killed on Tuesday while livestreaming with friends outside a fast food restaurant in the northwestern city of Culiacan, local authorities said. In a recording of the livestream, seen by Reuters, the driver of the motorcycle appeared to fire a gun directly at Gastelum. A security official in Sinaloa state confirmed Gastelum's death and said a significant security operation was underway. The shooting also recalled the May 2025 killing of Mexican beauty influencer Valeria Marquez, who was shot to death during a TikTok livestream at the salon where she worked in Zapopan, in the western state of Jalisco.