Honolulu police conducted a comprehensive search Thursday night for a patient who escaped from the State Mental Hospital in Kaneohe earlier in the day.
David True Seal, 30, escaped from the facility at about 2:30 p.m., police said.
In 2001, Seal was charged with sexual assault and kidnapping. He was acquitted by reason of insanity.
Police said Seal was last spotted at about 4:15 p.m. near the entrance to the Stairway to Heaven hiking trail at Haiku Road and Kuneki Street.
Police said they are using their K-9 units and the police chopper in their search.
Anyone who sees Seal should call 911. Police urged the public to use caution and not approach the man.