John Adam Sintich

John Adam Sintich (Johnny), 58, of Simi Valley, CA, passed away on July 6, 2026 in his home in Simi Valley, CA.  

A Celebration of Life will be held at 4220 Florence Street in Simi Valley on July 25, 2026 at 6:00pm.

John was born in Cook County, Illinois to Domenico Sintich and Cesaria Papperella on July 12, 1967. He went to Chatsworth High School and graduated in 1985. He went on to earn a Bachelor of Arts in Sociology from California State University of Northridge. He worked as a Field Representative for Generous Brands for 7 years. He enjoyed the beach, golfing, and spending time with his wife and son.

John is survived by his wife, Diana Sintich of Simi Valley, CA and their son Gino Sintich. In addition he is survived by his sister, Sandra Sintich, sister-in-law, Debra Stafford, and nieces Sarah and Anne Stafford. He is preceded in death by his parents Domenico and Cesaria Sintich.