Police Chief William H. Parker, foreground, and Capt. James Hamilton, head of the Gangster Squad. (R.O. Ritchie / Los Angeles Times)
In January 1957, Ellis Mandel, left, watches as Det. Sgt. William Forman escorts Mickey Cohen back into a grand jury witness room after Cohen walked out to protest the removal of an associate from Chicago. (Ray Graham / Los Angeles Times)
