uthorities said Monday they are investigating the deaths of two inmates awaiting execution at San Quentin Prison. Prison staff found one inmate, 54-year-old Andrew Urdiales, unresponsive during a security check on Friday at 11:15 p.m., according to a prison statement. Urdiales was pronounced dead at 12:01 am. Saturday. A day later, at 10:15 p.m. Sunday, prison staff found a second condemned inmate, Virendra Govin, 51, unresponsive in his cell, the statement said. Officials said Govin received CPR, but he was pronounced dead at 10:30 p.m. Both men were in cells by themselves and were on death row for multiple murders....