Eleven-year-old Luke was last seen in his home in Raymond, Washington on February 6, 1996. He left home after arguing with his parents and never came back.
Luke's bedroom door was locked and a screen was taken out of the window. His loved ones say that it's unlike him to leave home without warning.
Foul play is suspected in Luke's case and he might've been spotted in Oregon after he vanished, but it was unconfirmed.
Luke was wearing a blue shirt, black pants, black denim jacket, and tennis shoes the day he went missing. He has a birthmark on his right buttock.
Luke is an immigrant from Laos.