A man who was at the Broncos-Chargers game on Thursday with his son and two friends didn't return to his seat after halftime and hasn't been seen since, according to 9News.com.

Paul Kitterman, 53, went to the game with his son, Jarod, and two others, and after Jarod went to the restroom during halftime, he returned to his seat and found that his father wasn't there.

“We were looking everywhere in parking lots, trees, bushes, anywhere we could think of,” Jarod Tonneson said Sunday, via KDVR.com.

The family has filed a missing person's report with local police, but news reports say that police have no reason to suspect foul play.

Kitterman reportedly was carrying about $50 in cash but didn't bring his cell phone to the game. Kitterman is a white male, weighing about 190 pounds with brown hair and hazel eyes. Anybody with any information should call Denver police at 720-913-2000.

"He's absolutely nowhere to be found," said Tia Bakke, who attended the game with Kitterman. "It's been the longest, [most] miserable three days of our lives."

Courtesy of 9News.com, here's a photo of what Kitterman was wearing during the game.