Jordan Brown, Once Convicted of Killing Dad's Fiancee at 11 Years Old, Maintains His Innocence

Jordan Brown, who was taken into custody in 2009, was released in July after a court found there was insufficient evidence to sustain a conviction.

A boy who was convicted of killing his father's pregnant fiancee in 2012 is opening up after his conviction was overturned earlier this summer. 

Jordan Brown was just 11 years old when he was taken into custody in 2009 by Pennsylvania police for allegedly fatally shooting 26-year-old Kenzie Houk, who was expecting Jordan's younger brother at the time.

Called a "monster" and "extraordinarily disturbed," Jordan was accused of gunning down his father's fiancee execution-style before turning around and going to school like nothing had happened.

Prosecutors argued he was jealous of Houk and his unborn sibling, and in 2012, he was found delinquent of first-degree murder and criminal homicide of an unborn child.

But in July, that conviction was overturned by an appeals court, which said that there was "insufficient" evidence against Jordan, and he was released. 

Now 21, Jordan maintains he is innocent. "That’s, like, the only thing I really want people to know," Jordan told ABC News in an exclusive interview airing on "20/20" and "Nightline."

At the time of his arrest, Jordan didn't even understand what he had been accused of. "I didn't know what was going on," he said.

Jordan's father, Chris Brown, has steadfastly supported him through the years, visiting him at the detention center where he was held after his conviction 1,000 times. "He would say, 'Dad, you wouldn't believe what I seen today. One kid threatened to stab another one in the neck while we were eating.'"

Chris added: "I would just tell him, 'You've got to stay away from this behavior. You've got to stay away from these people.'"

The father blames state police for zeroing in on Jordan without looking for more evidence. 

"'Shame on you,' is probably the most polite way to put it," Chris said, when asked about his message for authorities.

“You took an 11-year-old’s childhood away from him. You’ve, you know, ruined his name in essence. I mean, you Google ‘Jordan Brown’ and you get that mugshot picture that pops up,” he said.

But Houk's family is furious Jordan is free, as they are convinced he was the one who killed her.

"They're not swayed by the lack of evidence," ABC "Nightline" Anchor Juju Chang told Inside Edition. "... In their heart of hearts, they still believe that police got their man."