Murder in the fifth

"Party 'til You Drop" was emblazoned on the back of Nate's t-shirt. Nate stood over the dead boby of his best friend, Bill Beldon. Hermosa Beach Police Officer Cahill thought that the dead man took that sentiment a bit too seriously. He touched Nate on the shoulder. "Not the ending you planned for his engagement party?" Who killed Big Willie? [from pg. 4].