Police said James R. Graham, 54, was arrested on Sunday on suspicion of sexual assault. He has not been charged, but he is expected to appear in court later this week.
Police said they are seeking a charge of first-degree sexual assault against the man.
A search warrant filed Tuesday alleges that Graham and a friend beat the woman and took turns sexually assaulting her.
The 46-year-old woman told police she met Graham last Wednesday and went back to his apartment. She said Graham and his friend attacked her, assaulted her and threatening her with a knife whenever she tried to leave.