MADISON, Wis. -

A Madison man has been charged with two counts of first-degree sexual assault for allegedly sexually assaulting a woman last week.

Police said Marcus T. Boone, 27, was identified because of a good description provided by the victim which was used to search surveillance video from downtown cameras.

A 21-year-old woman told police the assault occurred early Wednesday morning in a parking lot on Fahrenbrook Court while she was walking home from an evening with friends in the State Street area.

A criminal complaint said Boone followed the woman home from the State Street area, and tried to talk to her a couple times during the walk.

Boone threatened to shoot the woman during the incident, but she told police she did not see a gun, according to the complaint.

Boone told police he had been with the woman all night in the downtown area and then walked her home, but police pointed out surveillance images and information from a cab company and a friend he was with that night conflicted with his story, according to the complaint.

Boone’s bond was set at $10,000 cash. If convicted, he faces up to 120 years in prison. He will be back in court Sept. 2.