A San Francisco store clerk who had been in a coma after being beaten by a robber last week has succumbed to his injuries, the victim's family confirmed. A San Francisco store clerk who was brutally beaten by a thief wielding a baseball bat Thursday night has died from his injuries. Yowhannes “John” Tewelde, 60, never regained consciousness after suffering a major brain injury during the attack at Richmond Market and died at a local hospital shortly before 2:30 p.m. on Tuesday, his family announced.