Court documents, however, show that detectives were discouraged by their superiors from pursuing Williams as a suspect because of his value as an informant.
During the course of their investigation, they contacted Williams, who theyd used in the past as an informant...and were able to confirm the gun was Williams. Ballistics tests proved it was the gun used in the killing. They also traced the wristwatch back to Williams.
The Santa Clara County PD started their cold case unit less than a year ago, and this is at least the fourth case they've cleared.