Erik Menendez and his brother, Lyle, have spent more than 35 years prison for killings their parents in 1989 in a case that over the past year has gained renewed public attention following the release of Netflix's "Monsters: The Lyle and Erik Menendez Story" and various documentaries.

Menendez, who is incarcerated at a San Diego prison, was taken to an outside medical facility on July 18, where he remains in fair condition, an official said.

Erik Menendez has been hospitalized, and his attorney wants him released from prison ahead of an upcoming parole hearing.