Catherine O'Hara suffered a medical emergency, resulting in a 911 call just hours before she was pronounced dead. The 71-year-old Schitt's Creek star was at her Los Angeles home on Friday morning when she suddenly began having difficulty breathing, dispatch audio obtained by TMZ now reveals. First responders rushed to her Brentwood home at around 5 a.m., and she was taken to the hospital. The LAFD listed her as being in serious condition. Heartbreakingly, just hours later, she was pronounced dead. A cause of death is unknown at this time. Related: Macaulay Culkin Mourns Home Alone 'Mama' Catherine O'Hara Listen to the dispatch audio: What a deeply sad loss. As Hollywood continues to mourn this legendary star, our condolences go out to all her family and friends. She brought so much joy to the world through her comedy and work. R.I.P. [Image via Adriana M. Barraza/WENN] The post Catherine O'Hara's Medical Emergency That Led To Her Death appeared first on Perez Hilton.