Complex sentence: In November 1965, Clarence 13X was ruled incompetent to stand trial and committed to the New York State Department of Mental Hygiene, which placed him at the Matteawan State Hospital for the Criminally Insane.
Split into simpler sentences: In November 1965, Clarence 13X was ruled incompetent to stand trial and committed to the New York State Department of Mental Hygiene. He was held at the Matteawan State Hospital for the Criminally Insane.