Sherry Cooper

Sherry Cooper, nicknamed Simi Valley Sherry, is a former member of the Manson Family. Sherry was the girlfriend of Manson Family member Danny Decarlo.

Sherry A. Cooper was born in 1953 in Los Angeles, California. She was known as a fun, loving, horse crazy girl. She drifted in and out of the Manson Family when the Family stayed at Spahn Ranch. Sherry lived on Royal Ave. in Simi Valley, approximately seven miles from the ranch.

Spahn Ranch Raid

Sherry was arrested with the family during the Spahn Ranch raid. After the raid she moved to Barker Ranch in Death Valley with the rest of the Manson Family. Sherry fled Barker Ranch with Barbara Hoyt after Hoyt overheard Susan Atkins talking about the Tate murder to Ruth Ann Moorehouse.

When Manson found out the two girls had run away, he took off after them. He found them having breakfast in a diner and gave them $20 after the girls told Manson they wanted to leave. Story has it that Manson later sent three Family members to retrieve or kill the girls.

Unidentified Body

In 1969 an unidentified body (Jane Doe #59) with 150 stab wounds was found on Mulholland Drive. It was rumored that this was possibly the body of Sherry Cooper.

The unidentified body remained a mystery for 46 years, but in 2015 police have identified the woman as Reet Jurvetson, who moved to Los Angeles from Montreal the year she was killed.

Murder Trial

In 1970 Sherry’s then boyfriend Decarlo testified against Manson and the Family during the Tate/Labianca murder trial. After the trial, Sherry and Decarlo moved to Canada where the two got married.


Sherry and Decarlo had a daughter named Gina who died in a car accident in 1991. From a newspaper article:

Gina Decarlo was traveling as a passenger in a vehicle eastbound on I 10 when the vehicle rear ended a tractor trailer rig. The accident happened on April 29, 1991 at 7:00 am. Decarlo was taken to Desert Hospital in Palm Springs, CA. She had major head trauma. Decarlo was declared brain dead nine days later and taken off life support.


Sherry and Danny divorced. Sherry moved on with her life and remarried. In 1977 she married a man seventeen years her senior, and they are still together today.

Today Sherry lives in a small town in Northern California.