American Veterinary Medical Association, the CDC, and the Humane Society of the United States http://www.petsdo.com/blog/top-ten-10-most-dangerous-dog-breeds
Pit Bulls have the number one slot on this website, but German Shepard's have number 3. Just like a Pit Bull owner would say, it's how you raise and train your dog. I own a German Shepard (King) and he is extremely intelligent.
Also, he is a huge baby, that never leaves my side. He is friendly with every one of my neighbors, I can take a toy, or anything away from him with out a growl or dirty look. He lives in a house with three cats, one likes him the other two can't stand him, so King stays away from them. King is two years old. Had him since he was thirteen weeks old. My grandmother moved in last year with her 7 year old Chiwawa, it is a nasty dog that even bites my grandmother. King has not shown any aggression towards that Chiwawa. Matter of fact he's always trying to play with him lol but that dog wants no part of that.
In conclusion, just because its a Pit and/or German Shepard, or any others does not mean that you can't have them as family pets because they are an "aggressive breed" it's how you train them, and handle them.
Well, sorry for typing this long essay lol I love dogs, and some of them do get a bad rap. I feel bad that this happened, my blessing go out to that man!
King