A Jacksonville man was sentenced Friday to 15 years in federal prison for trying - and getting - pornographic images from a 9-year-old girl online, the Department of Justice says in a release.

Thirty-one-year-old Chad Jason Lansford found a 9-year-old girl through Facebook and began talking to her through the social network. Eventually, he sent the child images of his genitalia through Facebook.

He knew the child was 9.

Lansford also repeatedly asked for pornographic pictures of the child. She complied.

The child's mother brought a complaint to law enforcement after finding two pornographic pictures of her daughter on her iPod.

The FBI investigated and arrested Lansford.

In addition to the 15 years he'll serve behind bars, he'll also serve a 10-year term of supervised release when he gets out and register as a sex offender.