The Untouchables S04E29 - Line of Fire

When one of Marty Pulaski's dance hall girls is shot by a sniper just outside his nightclub, he automatically assumes that his main rival, Vince Bogan, is responsible. Bogan controls most of the 10 cent dance halls in Chicago, but there has been peace between the two, mostly because of mobster Janos 'Jake' Szabo. Marty loses his temper and kills Bogan which Szabo is willing to forgive, if Bogan really ordered the killing. When a second girl is killed, it becomes obvious that someone else is behind the killing and Marty tries to protect himself and his brother Herbie.