Zev Ephraim Patt, 34, was last seen October 2, 1998, in the Rampart area of Los Angeles. He lived in an apartment building and his final confirmed sighting was by the building manager. Patt is autistic and has not been in contact with his family since disappearing; because of his medical condition the case is classified as endangered missing.

He is described as a Caucasian male, 6 feet tall, about 130 pounds, with brown hair and brown eyes. He may have had a full beard when last seen. There has been speculation he could be in a hospital or care facility, but no confirmed information has emerged and investigators report no significant leads since his disappearance.

Anyone who knew Zev, recognized him, or has information about his whereabouts is asked to contact the LAPD Missing Persons Unit.