Perfect Strangers (1986) : 5x5

Larry writes an expose of a money laundering scheme that gets him his first front page story but he's upset when he realizes that Marshall & Walpole too all the credit for his article. Also, Marvin Berman, the money laundering scheme's accountant, is also upset because his boss took all the credit for the scheme that was really his idea. So he shows up at the Chronicle with a bomb and demands a printed retraction.