An East Bay triple-murder suspect left his cell phone behind at the scene of a Pinole burglary and then called it to get it back, unaware that a police officer was on the other end, authorities said today. Anthony Ramirez, 23, never got his phone. Instead, he is in jail, charged with killing a man in Emeryville and suspected of two other homicides in Contra Costa County, Pinole police Sgt. Matthew Messier said.