ST. PAUL, Minn. - Charges have been brought against a man accused in the sexual assault of a 12-year-old girl, thanks to DNA testing.

Steven Pierre Williams, 18, is charged with first-degree criminal sexual conduct for an incident that occurred on April 19.

According to the criminal complaint, the 12-year-old girl called police to report she had been sexually assaulted in the basement of the home on Albemarle Street in St. Paul.

Officers responded to the home and spoke with one of the renters who said they were charging the girl's phone and that she mostly stayed in the basement during that time. The renter seemed very disturbed to learn the girl was only 12 years old.

Police identified a number of people in the home as known gang members and associates. One of the men at the home was identified as Williams.

The girl was taken to Children's Hospital for a sexual assault examination. While at the hospital, DNA was found on the girl, which was sent to the Minnesota Bureau of Criminal Apprehension for analysis.

Authorities interviewed the girl who said she was in the basement with a man who pulled down her pants and had sex with her. She told officers she "zoned out" during the assault.

On Oct. 17, the BCA submitted a report saying the DNA found on the girl in the sexual assault examination matched Williams.

He was arrested and admitted to police he had sex with the girl. He said he didn't know how old she was, but guessed between 13-15.