In early October 1986, Billy Grondalski moved his family to Fort Bragg CA in an effort to quit the Hells Angels. On 5 October, he, his wife Patti, 5-year-old daughter Dallas, and 17-year-old stepson Jeremy Vandagriff were murdered by two Hells Angels, Charles Anthony Diaz and Gerald Lester. Mendocino County Sheriff's Lieutenant Phil Pintane won a well-deserved CA Dept of Justice Commendation for finally solving the case 18 years later.

The attached legal paper gives the grim story. There are also numerous articles in the Ukiah (CA) Daily Journal, which I have chosen not to list:

Both Diaz and Lester are serving life sentences.