Life Prison Term For Santa Rosa Man Who Killed Girlfriend | Veronica Cabrera RamirezSummary:August 7, 2019SANTA ROSA (CBS SF) -- A Santa Rosa man was sentenced Tuesday to life in prison for the domestic violence murder of his girlfriend in 2017, according to the Sonoma County District Attorney's Office. On July 31, 2017, Estrada-Margos struck Cabrera, his girlfriend of eight months, twice in the face with his fist causing bruising. On Aug. 18, Estrada-Margos struck Cabrera on the head with a dumbbell as she prepared to go to work. He drove Cabrera's car to the Santa Rosa police station, reported the incident and told police he assaulted Cabrera because he believed she was cheating on him, according to the district attorney's office. An autopsy found blunt force head trauma to Cabrera's head and the cause of death was determined to be homicidal asphyxia due to smothering or strangulation, prosecutors said.