The Dark Knight Gotham Tonight - Sal Maroni (2008)

As released by GCN:

World-famous journalist Mike Engel goes to the heart of Harvey Dent's case against mob kingpin Sal Maroni - Maroni himself. The notorious figure, now standing trial in a Gotham courtroom, faces tough questions on allegations that he is at the top of an organized crime family devastating Gotham City.

Maroni uses his trademark charm and good humor to stymie Engel's questioning, but his honesty is attacked by GPD Commisioner Loeb. And Mike Engel quizzes Loeb on the two mob bagmen found dead last week - and the leaked GPD surveillance tape that recorded the abduction.