He was later the husband of science-fiction writer Alice B. Sheldon (alias James Tiptree Jr.), 12 years his junior. In 1987, she shot and killed Sheldon and then herself in what was either a murder-suicide or, based on her personal writings, a suicide pact.
He was later married to science-fiction writer Alice B. Sheldon (pen name James Tiptree Jr.), who was 12 years his junior. In 1987, she shot and killed him, followed by her own death in what appeared to be either a double homicide or a premeditated joint suicide.