Detective Thomas Charles Williams Jr., 42, was killed on October 31, 1985, in Canoga Park, Los Angeles, while picking up his 6-year-old son from a church daycare center. A masked gunman drove up beside Williams’ car and sprayed it with bullets; Williams died at the scene. The attack was described as an ambush ordered to prevent him from testifying in a robbery trial.

Investigators tied the killing to a conspiracy involving multiple people. Four men were initially arrested and charged; later arrests brought the total to nine suspects. The man identified as the mastermind, then 33, was sentenced to death in 1988. A 23-year-old alleged conspirator was convicted of conspiracy and acquitted of murder and was later paroled. The 24-year-old driver of the ambush vehicle received a sentence of life without parole and remains incarcerated. Williams was posthumously awarded the Medal of Valor for actions to protect his son during the attack.

Are there investigators, witnesses, or family members who can share more about Williams’ role in the robbery case or about the people convicted in the conspiracy?