On August 5 , 1962 , LAPD police sergeant Jack Clemmons received a call at 4:25 a.m. from Dr. Ralph Greenson , Monroe 's psychiatrist , saying that Monroe was found dead at her home in Brentwood , California . On August 5 , 1962 , LAPD police sergeant Jack Clemmons received a call at 4:25 a.m. from Dr. Ralph Greenson , Monroe 's psychiatrist , proclaiming that Monroe was found dead at her home in Brentwood , Los Angeles , California .