By Maria Yagoda
Updated June 08, 2016 03:40 PM
Credit: ABC

Bobby Brown is finally opening up about the deaths of Whitney Houston and their daughter, Bobbi Kristina.

In an emotionally raw interview with ABC News’ Robin Roberts on 20/20 – which aired on Tuesday – Brown discusses his daughter’s drug abuse, as well as the similarities in the shocking deaths of his daughter and ex-wife.

Bobbi Kristina Brown died on July 26, 2015, nearly six months after she was found unresponsive in a bathtub in her Roswell, Georgia, home last January. Sources familiar with the situation previously told PEOPLE that the 22-year-old used heroin, cocaine and Xanax in the months leading up to her being found unconscious.

Houston, Bobby Brown’s wife of 15 years, died in 2012 at the age of 48 after being found unresponsive in a bathtub at a Beverly Hills hotel.

Here’s what Brown has said about both tragedies:

“It wasn’t me who started her. I take my part and I take hard for me even being a part of it, but we all have our own minds and some of us are stronger than others.”

And in 2012 on The Today Show:

“I smoked weed, I drank the beer, but no, I wasn’t the one that got Whitney on drugs at all It’s just unexplainable how one could, you know, [claim that I] got her addicted to drugs. I’m not the reason she’s gone. It makes me feel terrible. But I know differently. I think if anyone ever knew us, if anybody ever spent time around us instead of looking through the bubble, they would know how we felt about each other. They would know how happy we were together.”

“The drugs wasn’t her. She did drugs but drugs didn’t do her. She knew how to handle herself. It only made me love and want to protect her more.”

“She was bumping into me at Soul Train,” Brown explained. “I was like, ‘You keep bumpin’ into me.’ And I kept doing that. And I did it like two or three times, and she kept bumping me. I asked her why, and she was like, ‘Because I want to.’ And that attitude – that whole thing right there – that’s the way it started.”

“I’ve never been a violent man towards a woman ever.”

“For the rest of my life, I will have that feeling towards her because she was the one person that knew me – the one person who had no judgement.”

“The last few years of our marriage it was terrible. Both of us trying to be clean, or one of us trying to be clean … it was terrible.”

“The same thing that happened to my daughter, it happened to Whitney. The hardest thing I had to do in life was tell my daughter to let go.”

Related Video: Bobby Brown Says He and Whitney Houston Failed Bobbi Kristina: ‘We Should Have Been Better. We Could Have Been Better

“There’s only one person that was around both occasions I won’t say his name.”

“He knows what happened. I don’t know what happened that night. But he does.

The 20/20 interview aired at 10 p.m. on Tuesday, June 7, on ABC.