Authorities had spent six months putting together a case against Jessica's uncle, Stanley Dishon -- already facing separate charges of rape, sodomy and sexual abuse -- based on "reliable tips."
Dishon was 17-years-old when she disappeared from her home in September 1999. She was found weeks later beaten and strangled death in a wooded area, when FBI authorities concluded that she had been "violently sexually assaulted."
"It's a major relief for me, just something from that long ago...." Greenwell said before he broke down into tears. The sheriff was a rookie deputy when he visited the Dishon home after her disappearance.
"At that time, I did all I could do, but I mean, you never really feel like you did enough," he said.
In 2001, brothers David "Bucky" Brooks and Joseph "Tommy" Brooks were indicted for the crime, but were later found to have no connection to her death.
"Please respect our privacy and pray for our family," Dishon's mother, Edna Jett, told WHAS -11.
"We don't care who did it," Jessica's 27-year-old brother Michael said. "We just want that person to be brought to justice."