The parents of a victim of the Sandy Hook Elementary School shooting met with the gunman's father for more than an hour to discuss the tragedy.

Alissa Parker told "CBS This Morning" about meeting Adam Lanza's father, Peter Lanza, to "tell [him] something."

"I guess the reason why I felt strongly that I needed to tell [Peter Lanza] something. And I needed to get that out of my system. I felt very motivated to do it and ... I felt really good about it, I prayed about it, and it was something that I needed to do," she said.

It's not clear what they discussed or when the meeting took place. Her six-year-old daughter Emilie Parker was one of the twenty children fatally shot. Lanza shot killed his mother and six adults before committing suicide.

"You know, you went from the absolute worst experience that you could ever imagine to have to go through as a parent ... and being overwhelmed with that sense of grief and loss to, on the other end of the spectrum, you're being completely overwhelmed with outpouring of love and support from so many people and everything that kinda falls in between," Robbie Parker, her husband told the network.

The Parkers told CBS they wanted to ask Peter Lanza about his son's medical history.

"Any information ... that you gain in this experience is just that. It's information," Robbie told CBS. "And then you have to choose how you're gonna handle it. And so for us, we've decided that what works best for us is you receive a bit of information, you process it, you feel the emotion that comes along with it, and then you have to let it go."

Robbie Parker was the first parent of a child killed at the school to speak publicly about the massacre, according to the Associated Press. He spoke a day after the shootings during a news conference, "She was beautiful. She was blond. She was always smiling," he said. "I'm so blessed to be her dad."