Identify Deep Bruising News Today

Autopsy. his conclusion? homicide. was rebecca murdered? her family thought so. and eventually the case found its way to this man. >> it was intriguing from the beginning. >> reporter: san diego attorney keith greer. >> dr. wecht did identify deep bruising and internal bleeding, which couldnt be explained by the hanging. >> wait one second, but could be explained by what? >> somebody knocking her down from behind, and hog-tieing her. a struggle. >> reporter: plus the force of falling nine feet f...