An investigation is underway in Mission Beach after a bartender was stabbed at a steakhouse. The attack took place around 2 p.m. on Thursday, according to San Diego police. Witnesses told responding officers that the suspect was initially on the beach and appeared to be under the influence. WATCH HERE WATCH HEREAfter he was confronted by a bystander, the suspect walked into Moe's Steakhouse in the 3700 block of Mission Boulevard and stabbed the bartender seven times. Kevin Stein told NBC 7.