movie where guy uses paper towel dispensor for assassination

Walter Weed is an unassuming desk jockey at the FBI when the Bureau uncovers a plot to assassinate him. A team of degenerate, psychotic assassins dispatched by mystery man Hal Leuco to win a huge bounty includes a resourceful beauty who has a unique method of killing her prey, a power-tool wielding psychopath and a deadly master of disguise.

When a Las Vegas performer-turned-snitch named Buddy Israel decides to turn state's evidence and testify against the mob, it seems that a whole lot of people would like to make sure he's no longer breathing.