Wesley's sleazy nephew Pat McGurn joins his uncle's henchmen in attempting to kill Dalton who is currently laying siege to the mansion. Pat appears on an indoor balcony overlooking the living room where Dalton has just finished fighting and killing Ketchum.
Cocking his shotgun, Pat takes aim, but Dalton heard the cock and spins Ketchum around so the deceased henchman takes the gunshot instead. Pulling Ketchum's knife from his stomach, Dalton slings it up at Pat and the knife claims its third and final victim for the movie.
Like most characters killed while up in high places, rather than falling backwards, onto the floor of the balcony, Pat's corpse defies momentum and pitches forwards over the railing.