A second investigation into the rape and beating of a Lehigh County woman in 2004 uncovered new evidence that lead to the conviction of her attacker.
A jury found Demetrius Johnson of Illinois guilty of rape, sexual assault, burglary, aggravated assault and simple assault on Thursday.
Police say Johnson broke into the victim's Fountain Hill home early on the morning of August 4, 2004 and raped and severly beat her.
Three days later, the victim's sister found a condom at the home and turned it over to police, according to the Lehigh County District Attorney's Office.
The condom was only tested for the presence of semen, according to the D.A's office.
Years later, new detectives took over the case and had the condom's contents tested for DNA and it matched Johnson's, according to the D.A.'s office.
Johnson is scheduled to be sentenced in August.