A SeaTac man was sentenced to 20 years today for producing child pornography that was found in a Federal Way residence and for possessing firearms.

Steven Maurice Williams, 43, was sentenced at U.S. District Court, Western District of Washington in Seattle by Judge Robert S. Lasnik after Williams, a previously convicted felon, pleaded guilty to the charges in February.

Federal Way police first learned of the crimes in August 2013 after Williams’s ex-girlfriend and their son found pornographic images of a then-10-year-old girl on his camera’s memory card at their Federal Way residence.

Williams’s son had asked to use the memory card so that he could save a video game but instead found 76 images of the girl asleep in her bed and being touched and photographed by his father, according to court documents.

After telling his mom, Williams’s ex-girlfriend contacted the girl’s mother who confirmed that it was, in fact, her daughter and the photos had been taken in her bedroom in Bonney Lake.

Federal Way police and a special agent with the U.S. Secret Service and member of the Seattle Internet Crimes Against Children task force worked together in the investigation, which led them to discover the girl’s mother had helped Williams, a convicted burglar, move two guns, several video cameras and memory cards, some of which was known pornography, to a storage unit in Auburn.

“[The girl’s mother] said she is in some of the pornography, but does not know what else it is comprised of because Williams is secretive about it,” the documents state.

The special agent and Federal Way police obtained a search warrant on the storage unit that same day and took a safe, three digital video cameras, multiple 8mm cassette tapes, multiple photo albums, film, items of domination and control, VHS tapes, DVDs, mini VHS tapes and multiple SD memory cards.

Police found Williams at his mother’s house where he agreed to speak. In the interview, Williams told police he didn’t want to talk about the images on the memory card but admitted that he owned firearms, despite knowing he wasn’t allowed to posses them. He stated that “Someone was getting rid of them so I put them in the safe a while ago and forgot about them,” the documents continue.

Williams has had previous trouble possessing guns while on probation for a prior offense, according to charging documents.

Police then took photos of Williams’s hands before stating they were concerned for the welfare of the girl, who was now 11 years old.

“Williams replied, ‘I don’t want to talk about that without a lawyer, but I have seen her a bunch of times since those pictures and she is fine.’”

A few days later, the special agent learned there was more.

In an interview with Williams’s ex, charging documents state the reason Williams and his ex-girlfriend broke up was because he “knocked up a 12-year-old.”

His ex-girlfriend alleged he used to sell crack-cocaine at a Des Moines apartment complex in 2000. During this time, he would deal drugs to a 14-year-old girl who would have sex with him in exchange for crack-cocaine. When his ex-girlfriend found out, she went through his belongings and found photos of the girl in see-through lingerie, engaged in sexual acts with Williams, the documents continue. The ex then retaliated by posting the photos on the girl’s front door of her apartment.

According to charging documents, the girl remembers engaging in sex with Williams but does not remember being photographed.

Police eventually opened the safe and found a handgun and a revolver, both loaded, and the photos of the 14-year-old girl and Williams together.

Investigators were able to match the hands in the photos to Williams’s, as there were distinctive scars and freckles.

Because the memory card was manufactured in Taiwan, and the handguns were also manufactured out of state – all three had to travel in foreign and possibly interstate commerce – Williams’s charges were filed in federal court.

Williams originally pleaded not guilty in September 2013 and was initially charged with possession of child pornography but the court dismissed the count in a plea agreement.

After Williams is released from prison, he’ll be under supervised release for 15 years and will be ordered to register as a sex offender. Williams will forfeit his guns, all images of child pornography and upon release from prison will still be unauthorized to possess firearms.