A registered sex offender already facing three unrelated criminal sexual conduct charges is now charged with attacking another woman in July.

The latest charges against Nathaniel Michael Wilson involve the sexual assault of a 53-year-old woman at a Hanover Street house in July, Charleston police said.

Wilson, 47, faces a charge of first-degree criminal sexual conduct in that attack, police said. Police served him with an arrest warrant Tuesday at the Sheriff Al Cannon Detention Center, where he was being held on three other sexual assault charges, records show.

Police spokesman Charles Francis could not immediately say what tied Wilson to the latest attack with which he has been charged.

Wilson, who is homeless, is a registered sex offender in South Carolina due to a 1982 rape in Richland County for which he was convicted, State Law Enforcement Division records show.

Wilson is also accused of raping a woman at an abandoned house on Line Street in July, fondling another woman after she left a King Street bar in August and attacking a third woman from behind as she walked from a friendís home on Line Street in September.

The charges filed Tuesday concern a July 22 incident in which a woman reported being attacked by an acquaintance at her home. The woman told officers she was having some beers at the home with a man whose name she didnít know.

When she came out of the bathroom at one point, the man confronted her with a knife, tossed her on the bed and sexually assaulted her, according to a police report.

Reach Glenn Smith at 937-5556 or Twitter.com/glennsmith5.