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Christian Brando, who had been hospitalized with double pneumonia, died Friday, PEOPLE has learned. He was 49.
Brando – son of the late actor Marlon Brando – was admitted to Hollywood Presbyterian Medical Center Jan. 11, according to his ex-wife Deborah. Brando was in a coma and on a ventilator while hospitalized.
"His body was totally compromised," Deborah Brando told PEOPLE. "He'd lived hard ... This is just so sad."
Christian Brando pleaded guilty in 1990 to manslaughter for killing his sister's boyfriend and spent six years in prison.