A gunman killed a social media influencer during a livestream in Mexico's volatile northwestern state of Sinaloa, authorities said on Wednesday (August 5, 2026), a public killing that underscored ongoing violence targeting social media personalities in the Latin American nation. The influencer, César Gastélum, was killed on Tuesday night (August 4) in the Sinaloa State capital of Culiacan, officials said. Mexican authorities implied the killing of the young man was linked to cartel violence but did not blame any particular group. Messages of "rest in peace" were posted on Gastélum's social media accounts on Wednesday. Sinaloa has in recent years been ravaged by warring between two factions of the Sinaloa Cartel.