police in relation to the death of 13-year-old Cassie Riley. On September 24, 1974, Riley had left her house to visit a store. Her father reportedly found her death in a
Stream bed after she failed to return home. Riley was reportedly pummeled and kept submerged until her death, according to SFGate.
Mutch was released from prison in 2016 after serving 41 years. Despite his repeated denials of parole before to his release, Mutch insisted in his innocence.