Actually pitbulls do have a friendly nature, my cousin has one, and hes the biggest baby on earth, he would never hurt someone. My friend has one also, and shes one of the nicest dogs ive ever seen. How they act is depends mostly on how there raised. But it is obvious that pitbulls as a whole are more aggressive than other breeds. But it doesn't mean they should be banned. It was 100% the uncles fault, he new he had an aggressive dog, but still kept it. And now he has to live with the fact that his niece is dead because of his ignorance.