May 4, 2012 7:18 pm Private Investigator Pleads Guilty in ‘Dirty Cop' Case Private investigator Christopher Butler pleaded guilty Friday to seven counts and described how he helped a cop steal and sell drugs. NBC Bay Area’s Jodi Hernandez reports. US & World Videos 3:27 May Day demonstrations planned, Gaza war protests continue across Bay Area 1:19 Kari's forecast: Warm and windy day 2:25 What to know as SF launches parking enforcement crackdown 2:27 Junk fee law bans restaurant surcharges 0:51 Organized retail theft task force makes arrest in San Mateo
