Bobby Brown: Nick Gordon killed Bobbi Kristina and Whitney Houston

US: In an interview to promote his new autobiography, Bobby Brown suggested Nick Gordon is responsible for what happened to both Whitney Houston and their daughter, Bobbi Kristina... Bobby tells Good Morning America's Robin Roberts;

"It's mystery to me. The same thing that happened to my daughter is what happened to Whitney. There was only one person who was around on both occasions… I won’t say his name...He knows what happened. I don’t know what happened that night, but he does.”

If he was around on both occasions, well...isn't it such a coincidence. Sad what happened to them!

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

Bobbi Kristina died in July 2015 at age 22 after being found unresponsive in her bathtub in January 2015. Investigation over her death revealed she died from a combination of drowning and drug intoxication. A toxicology report found marijuana, alcohol, "a cocaine-related substance," sedatives, anti-anxiety medications and morphine in her system when she was found.

Gordon, 26, was Bobbi Kristina's boyfriend who lived with her at the time she was found unresponsive.

Houston took Gordon in when he was just 12 years old but never officially adopted him. Gordon started dating Bobbi Kristina dating after Houston's death.

"The last thing I told her, I just said, 'Let go.' I said, 'It’s OK, you can go with your mom, daddy’ll be all right. I love you. You can rest now,'" Brown said. "Hardest thing I had to do in my life was tell my daughter to let go…. I don’t wish that on my worst enemy or any enemy. That is the worst pain in the world."