Authorities are investigating what could be a new lead in the cold case investigation of a missing teen, that's according to Antigo Police.On their Facebook page, the department says a YouTube video, recently gone viral, could be connected to Kayla Berg.The video titled, "Hi Walter! I got a new gf!" was posted back in October of 2009. In it, a man describes an encounter with his new girlfriend, and then shows a woman who appears to be held captive in a locked room.Berg went missing in august of 2009, this video was posted 2 months later.UPDATE: The Antigo Police Department has been investigating the "Hi Walter, It's Patrick, I have a new girlfriend" video that was on Youtube. The Antigo Police with the help of another law enforcement agency has been able to identify that this video is 100% fake. The Antigo Police Department has identified the video producer/camera man, actor and actress in the video. This video has no connection to the disappearance of Kayla Berg.Source: Antigo Police Department Facebook page