OAKLAND -- A 33-year-old Oakland man with a long history of violent and sexual attacks against women was sent to prison for 57 years to life Friday after being found guilty of participating in a kidnapping and gang rape of two Oakland High School girls in 1998.

A jury found David Haqq guilty last month after it determined that DNA evidence collected from one of the teenagers raped was enough to link Haqq to the crime even though the victim could not identify him.

Based on statements the two girls gave to police at the time of the attack and testimony one of the victims gave during Haqq's trial, investigators believe there were three men who participated in the attack, including one man who has a twin brother.

However, the case wasn't solved until 2011 because neither victim could identify the men. One victim could say only that she recognized one of her attackers as a twin who lived in her neighborhood.

Though Oakland police had both teenagers look through hundreds of photos, including pictures of twins from their age group, no one was identified.

Haqq's penchant for attacking women eventually linked him to the 1998 attack when he was forced to give a DNA sample after he was sent to prison for beating one woman and sexually assaulting another.

When Haqq's DNA profile was added to a statewide database, a link was made to a DNA profile submitted as a cold case in connection to the 1998 attack on the girls.

With Haqq identified, police asked both teenage girls to participate in the prosecution but only one agreed. That girl, who is now 29 years old, testified about the attack but could not identify Haqq as one of her attackers.

The girl did eventually identify one of the twins who attacked her but could not say which twin was involved. Since DNA profiles of twins are identical, police and prosecutors could not determine which twin to charge.

On Friday, the victim said she wasn't sure Haqq raped her and pleaded with prosecutors to get the twin who raped her.

"I see him (in my mind) every time I go somewhere," she said of the twin. "He really ruined my life."

Deputy District Attorney Glenn Kim said the attack began as the victims were walking back to school after grabbing a snack at a gas station on Park Boulevard across from Oakland High School.

While at the gas station, the three men approached the girls and began talking. Once the conversation turned sexual, Kim said, the girls tried to get away but were dragged into a van. Over the course of several hours, the girls were raped as the van drove around town.

The girls eventually escaped after the men left the van and left the doors open.

Haqq denied during the trial that he raped the victim and said the DNA sample taken from her was the result of consensual sex. Haqq continued to deny involvement in the rape Friday.

"I should not even be prosecuted," Haqq said.

A jury, however, felt otherwise as it found the felon guilty of two counts of gang rape and one count of kidnapping with the intent to rape. Haqq was also found guilty of two kidnapping enhancements.

Haqq's attorney, David Byron, declined to comment.

Kim said Haqq's criminal history and the evidence presented during the trial proves that Haqq is guilty.

"He's demonstrated that he is constantly and consistently a threat to society," Kim said. "He's a criminal defendant that I am happy to see go away for life."