A 30-year-old East Bay man drowned off the shores of North Beach on Sunday afternoon after a friend attempted to rescue him from the rough surf. Adi Handach was reported floating 100 yards from shore at 2:41 p.m., and currents were sweeping him further. By the time paramedics arrived, he had been brought to shore. Responders worked to revive him until a California Highway Patrol helicopter transported him to a Sonoma County hospital, where he…