Dog agression story!!

In college I got home from class one day and noticed my living room widow was broken and my rotty was in the backyard which was weird because I had left him in the house. I go out back to whoop his butt and it looks like someone has stuck a hog in the yard because there is a lot of blood. Great....he's cut himself on the glass when he jumped thru. After checking him out I couldn't find a single scratch so I start looking around and notice someone popped a little hole in the upper half of the window and was able to push the lock half way open. I called the cops and we determined someone had tried to break in, the dog went thru the window to attack the intruder, there must have been a wicked fight because there was blood on the house, on the fence, alll over the yard, and all the way down to the street. The cops were sure the guy would pop up in some emergency room and they would pick him up.