As much as I love dogs I must say this was totally the owners fault.  The rule was the dog needed to be on a leash.  The woman did not follow the rules and the dog ran over to a stranger. The dog scared the stranger as is expected. I have had many big scary dogs running towards me and wasn't sure if it was going to attack me or be nice. The man got scared and shot the dog. Its sad but the man did not know if the dog was going to attack him.