PITTSBURGH — The Allegheny County Medical Examiner has scheduled an autopsy on a homeless woman found dead in frigid temperatures under the Liberty Bridge in Pittsburgh.

Pittsburgh police said the woman was Stacy Lenzo. She was from Mississippi and had been living in a tent in a homeless encampment under the bridge.

Police said the woman's boyfriend called them when he found her unresponsive about 4:30 p.m. Sunday.

The National Weather Service said temperatures dipped to 5 degrees on Sunday morning.

WEXFORD — The girlfriend of Pittsburgh Steelers wide receiver Cedrick Wilson was arrested Sunday after a nearly 12-hour standoff at Wilson's home that led to the evacuation of about 70 neighbors, police said.Lindsey Paulat, 26, of Tarentum, was charged with aggravated assault and recklessly endangering another person, a television station reported.Robert Amman of the Northern Regional Police Department told the television station that the standoff began a few hours after an argument Saturday morning between Wilson and Paulat. Wilson left his Pine Township home about noon, and Paulat's mother came to talk to her.While her mother was there, Paulat fired two shots from Wilson's handgun into a wall, police said. No one was injured.Paulat's mother left, and police were called around 1 p.m. Neighbors were later evacuated as a precaution. The standoff ended when Paulat threw the gun from the front door, police said.She was arrested about 12:45 a.m. Sunday.Amman said that Paulat initially only wanted to talk to Wilson. Wilson returned about 5 p.m., but did not speak to Paulat."She was extremely upset and not being forthcoming with us initially, so it took some time to get through to her," Amman said.Wilson, 29, was not available for comment, but Steelers spokesman Dave Lockett said Wilson was fine.