However, police now say DNA has led them to the suspect.
"We have a DNA link between two cases here," Captain John Darby of the Philadelphia Police said.
Police say DNA links 23-year-old Domenique Wilson to rape and robbery cases in Philadelphia.
On October 22, 2008, a man and woman were followed into her Clinton Street apartment, then bound and gagged, as the woman was repeatedly raped over several hours.
On December 19, 2008, two women were similarly assaulted in an apartment at 44th and Spruce Streets.
Police say DNA, a sketch, and similarities point to Wilson.
"The type of weapons he used, his MO, the fact that in all these cases he remained in these residences for extended periods of time, again, terrorizing these victims," Captain Darby said.
Police say the 6'6" West Philadelphia High School basketball standout was also a Lock Haven University basketball player.
He is jailed in Lock Haven in connection with a similar assault against three women, who were bound, raped, and robbed on Super Bowl Sunday.
Women who lived where the assaults occurred in Philadelphia are relieved.
"That's great. Everybody's had posters up looking for him," Laura Bacon of University City said.
"I did speak to the young woman of Penn, the survivors of this horrendous attack on the 19th of December at 4400 Spruce, they are immensely relieved," Penn Public Safety Director Maureen Rush said.
A tip led police to Wilson in a hotel he was reportedly staying in while visiting his 13-month old son.
Wilson will soon be charged by Philadelphia Police.
One of the local victim's stolen ATM cards was used at a machine at 58th and Baltimore, just a block from where the suspect lives.
Wilson remains in custody in Lock Haven.
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