Authorities are trying to determine what killed an inmate at the Santa Cruz County Jail this week -- the third such death in four months.
The Santa Cruz Sentinel says the 47-year-old man was found in his bunk bed on Tuesday evening. CPR was performed but he was declared dead a short time later.
He'd been arrested three days earlier for a probation violation. Authorities say no foul play's suspected.
Sheriff's Lt. Shea Johnson says the inmate told jail staff he was having drug withdrawal symptoms and was on a "detox protocol'' that included extra medical attention.
In August, a 27-year-old woman died in the jail from medical problems attributed to heroin abuse.
In October, a 59-year-old man collapsed during booking and died of cardiovascular disease.