Killer's Payoff

It's like an old-time gangster movie: a speeding car, a blazing gun...and suddenly a guy walking down the street without a care in the world is lying in the gutter without a head on his shoulders. But who pulled the high-powered trigger that turned Sy Kramer from a blackmailer into a chalk outline? Was it the politician's wife with a pornographic past? The soda-pop tycoon desperate to keep a business-busting bungle bottled up? Or was it whoever was paying Kramer a small fortune to hide what...