Merle Leroy Ryan, 53, was last seen on October 17, 2012, in San Francisco after an arrest in a park near Cesar Chavez Street. He never made contact with family or friends after that incident and has not been seen since.

Ryan is described as a white male, 5 feet 9 inches to 5 feet 11 inches, 130 to 150 pounds, with brown hair, brown eyes, a receding hairline and a gray beard. A burn scar that looks like a dimple is on the top of his right hand below the index finger. He has a diagnosed history of schizophrenia and periods of homelessness and wandering. He may use several aliases, including Dimitri Andropv, Moses Enoch, John Fitzgerald Kennedy, and the first name Demetrius.

Few details are available about the arrest or what followed. The Eugene Police Department in Oregon is investigating the case. Does anyone have information about his movements in San Francisco around October 17, 2012, or about contacts who knew him under any of his known aliases?