GARDEN GROVE ( — A mental patient who escaped from a Santa Ana facility Friday and who reportedly threatened children in the past, is back in custody.

Garden Grove police say Norris Phuoc Nguyen returned to the facility a little more than 24 hours after he left.

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Just before 5 p.m. yesterday, Nguyen reportedly walked out of the facility — the Royale Health Care Center — located at Bristol Street and Warner Avenue.

Authorities interviewed Nguyen upon his return. He told them he went to a nearby friend’s house.

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Police investigators talked to Nguyen about his disappearance and they say at this time it doesn’t appear that he committed any crimes while out among the public.

Nguyen, a schizophrenic who reportedly has a preoccupation with assault weapons and knives, has been housed at the facility since December 2012.

Officials said Nguyen has repeatedly threatened to harm a specific teacher and children at the elementary school he attended in Garden Grove.

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Authorities wanted to thank the public for the numerous tips and possible sightings they received in the 24 hours Nguyen was on the lam.