JACKSONVILLE, Fla. -- A teenage boy has been sentenced to two life terms in the 2011 murder of a 13-month-old girl.

Javarris Jawon Lane, 17, was also denied the possibility of parole by Judge Adrian Soud when he was sentenced Friday in the death of Alexandria Williams, according to a release from the State Attorney's Office.

In October 2012, Lane pleaded guilty to second-degree murder, sexual battery on a child under the age of 12 and aggravated child abuse.

The incident took place in September 2011 when Lane was babysitting Williams. Lane originally told police that Williams fell from the bed while he was playing a video game.

Evidence later showed that he shook the girl, sexually abused her and hit her head on a dresser several times, according to the release.

Both of Williams' parents were at the sentencing to address the court.

"All I ask of the Court is to do what I can't and that's to see this predator never hurt another family again," Robert Williams told Judge Soud.