Transcript for Buffalo Bishop's tenure was marked by scandal: Part 2
Shortly after our initial report aired, it was clear bishop Malone was deeply unpopular. Nearly 90% of Buffalo catholics said he should resign. But the bishop stuck to his guns. There are lots of members of this community who say you should resign. Have you considered it? No. Reporter: Then there was bombshell after bombshell. First the state of New York opened a temporary window, setting asides statute of limitations for sexual abuse. They face now 200 new lawsuits, one from Matt Goldman. Then a second whistle-blower came forward with audio of the bishop privately discussing another priest, this one accused of extorting and sexually harassing a seminarian. The simple version is we have victims, and we have a perpetrator, and he's done things that are clearly wrong, and I think he's a sick puppy. Reporter: Only later did he seek to remove that priest from ministry. Everyone in the office is convinced this could be the end for me as bishop, could force me to resign. Reporter: The day after, he had a press conference. I have not been the recipient of one of those calls. Reporter: Again, he refused to step down, suggesting that the lack of action from Rome constituted an endorsement of his leadership. They're not unaware of all the news around here. But so far, apparently, I'd like to think they are trusting, trusting in my good will and my intention and capacity, working with other people to lead us, to lead us forward. Reporter: Then, pope Francis ordered a formal review of the diocese, reporting the bishop of Brooklyn to investigators, after he submitted his confidential report to the Vatican, all the New York state bishops traveled to Rome for a group meeting with pope Francis. Malone still insisted he had no plans to leave. In a few words spoken privately to me, it was clear that the pope understands the difficulty and distress we have been experiencing. He was very understanding and kind. Reporter: That abruptly changed today with the news that Malone had resigned effective immediately. I'm not here as a knight in shining armor. I'm not here as the fix-it man. I'm here to be as a spiritual father. Reporter: The bishop of Albany has taken over on an interim basis. I'm here to listen to you, walk with you and help you heal. Reporter: He said the plan was in motion even before that Vatican meeting. Thanksgiving week I was made aware that it would happen, that bishop Malone would retire and that an announcement would be made. Reporter: Separately, the FBI is conducting its own ongoing criminal investigation. Which is why we posed this question to whistle-blower Shavon o'connor. Reporter: Do you think bishop Malone should go to jail? That's a hard question for me. Because he wasn't aloin. Reporter: Would you be testifying against him? Yes, I would. So in that regard, my testimony might result in him going to jail. Again, it's hard, because I do know him personally, S I think he does need to go to jail, but I would visit him. Reporter: We played that exchange for bishop Malone. Sadly, I think he does need to go to jail. Well. But I would visit him. That is a shocker to me. And disappointing and very distressing. That's all I can say. Reporter: You understand the depth of her anger and disappointment? Not entirely, not entirely. To say she thinks I should go to jail, I find, I'm almost speechless, speechless to hear that. Reporter: There are still plenty of unanswered questions. For now, even though Malone is out, father Riter is still an active pastor in Buffalo. Scars are going to remain, memories are there. Anybody that's been a victim of abuse, that triggering moment can happen and never goes away. Reporter: But today marked an important step forward, not to mention a vindication of Charlie speck and Shavon o'connor. People will learn that it's always worth it to preserve the truth and fight for the truth. When we work together to expose these documents and these recordings, it was shown that the public really does still care about the truth. And it was a message that I think is really heartening for us. Reporter: Without her courage and his persistence, bishop Malone might still be in charge in Buffalo. I'm David Wright for "Nightline" in New York.
This transcript has been automatically generated and may not be 100% accurate.