BUFFALO, N.Y. (WKBW) — I-Team lead investigator Charlie Specht's months-long investigation into the Catholic Diocese of Buffalo was featured on ABC's Nightline recently.

The episode will re-air on Monday at 7 p.m. on 7ABC.

A crew from Nightline recently interviewed Specht and other key players in the investigation into decades of sexual abuse among clergy in the diocese.

The original airing of this episode of Nightline came one year to the day since Charlie Specht first met with diocese whistleblower Siobhan O'Connor, then-secretary to Bishop Richard Malone. The meeting happened in a downtown Buffalo parking lot.

Click here to read Charlie Specht's full investigation into the sex abuse scandal within the Catholic Diocese of Buffalo.