Teen Mom's Amber Portwood Under Investigation - Police to Subpoena MTV

If you've been watching MTV's "Teen Mom", the other teen moms seem to be overshadowed by the destructive relationship between Amber Portwood and her fiance Gary Shirley. Watching them fight in full view of their daughter, Leah, has disturbed many a viewer. A scene showing Amber hitting Gary and attempting to push him down a flight of stairs drew the ire of viewers and the attention of the police.