A fourth suspect is in police custody in the case of a 16-year-old boy who showed up emaciated and shackled at a Northern California gym.
Tracy police say 29-year-old Anthony Waiters was arrested Tuesday at his workplace in Pleasanton.
He was booked at San Joaquin County Jail on charges of torture, conspiracy, child endangerment, corporal injury to a child and false imprisonment.
Police did not release further details, citing a judge's gag order. It was not immediately known if Waiters had an attorney.
Three other people face torture, kidnapping and child abuse charges in the case. Authorities say the boy had been kept chained in a fireplace, choked with a belt and denied food for days at a time during more than a year in captivity.
Three adults face multiple charges, including kidnapping and torture, in the abuse of a teenage boy who managed to escape in Tracy, California.
He fled to a nearby fitness center with a chain still attached to his foot. He appeared emaciated, was covered in soot, and wore only boxer shorts. The boy is 16 or 17 years old.
One of those charged has given an interview with KGO-TV of San Francisco. Kelly Layne Lau says the boy was burned with a heated aluminum baseball bat. She told KGO that she took part for fear her own children might be hurt.
Police say the boy was sometimes kept shackled in the house and abused with a belt and knife. The abuse allegedly went on for almost a year and a half.
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