"The crying after a while just got to be overwhelming," said death row inmate Travis Mullis.
In 2008, a then 21-year-old Mullis became known as the dad who killed his infant son because he wouldn't stop crying.
Just hours before that happened, Mullis says he took a friend's 8-year-old daughter to her school's playground.
"I attempted to take her clothes off, she wouldn't do it. She started crying," Mullis said.
Mullis says his intention was to molest her. After taking the little girl home, Mullis says he left with his 3-month-old son.
"He started crying. I tried to console him. I thought it would work, but it didn't work. I sexually assaulted him and killed him," said Mullis. "I put him on the side of the road and stomped on his skull until it collapsed."
Mullis is not your typical death row inmate. He's never claimed to be innocent, and he has no complaints about life on death row. He says he's just ready for justice to be served.
"I'm guilty of what I did and the death penalty is the legally justified and I believe morally sentence for what I've done," he said.
Mullis knows he could spend many years here while the appeal process slowly grinds.
He's filed a motion to stop his federal appeal and get rid of his attorney.
"I'm ready to accept my punishment," said the death row inmate.
We asked Mullis, who says he's a Christian, where he would be spending the afterlife.
"If I go to hell, I go to hell," Mullis said, then mentioned that he asked God to forgive him a long time ago.