Daly City police are investigating the death of a woman found unresponsive in her home Thursday morning.
Police were called to the home on the 400 block of Florence Street at 7:50 a.m., according to Sgt. Harold Rolfes.
Officers arriving on the scene found a 65-year-old woman dead inside the home.
Police interviewed witnesses at the scene, including the woman's estranged husband, who was subject to a domestic violence restraining order.
The husband, Daniel Thomas, 65, was later arrested on suspicion of domestic violence, violation of a domestic violence restraining order and a probation violation.
Detectives are investigating the death. Anyone with information is asked to call 650-991-9092.