Friday, Santa Ana police issued an alert after Norris Phuoc Nguyen escaped from a mental health facility, where he's been committed since last year.
Authorities say he had made threats against children at a Garden Grove elementary he once attended. Saturday, Nguyen voluntarily returned to the mental health facility and was taken into custody. He told authorities that he went to a friend's house nearby.
Garden Grove police interviewed Nguyen and said it doesn't appear that he committed any crimes while he was away from the facility.