Anthony McClanahan, the former Bakersfield High School football standout who had a brief stint with the NFL's Dallas Cowboys, told police last week that he, his wife and "his baby" had been attacked by two or three men at a condominium complex, according to court documents cited in a report by The Salt Lake Tribune on Monday.

But no one matching the description of the alleged attackers appears on security footage from the entrance to the Park City, Utah, complex, the Tribune reported. And police found no signs of forced entry, or evidence a baby or child had been in the room where the body of McClanahan's wife, Keri "KC" McClanahan, was found. 

She was unresponsive and covered in blood, according to the paper. It was reported she suffered knife wounds to her throat. 

On Monday, prosecutors charged McClanahan, 46, with first-degree murder in her death. He faces life in prison if convicted.

Keri McClanahan's sister, Heather Gauf, told the Tribune there was a history of domestic abuse between the couple, who were married in January and lived in Arizona. Gauf said her sister had recently gone to Utah to get away from her husband.

McClanahan also faces a kidnapping charge after taking his 8-year-old son from Arizona on Oct. 3 without the mother's permission. The child is from a previous relationship, according to reports.

A childhood friend, Justin Peppars, has said he noticed McClanahan's posts on social media had taken a dark turn in the months before the killing.

In a video, which appeared to be taken at a hospital, McClanahan talked about some of the troubles he's had from injuries he suffered while playing football, including what he claimed were dozens of concussions.

McClanahan, who also starred at Washington State University, played with the Canadian Football League's Calgary Stampeders from 1995-98 after his stint with the Cowboys. He won the 1998 Grey Cup championship with the Stampeders.

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