My 30 pound dog was attacked by three unleashed pit bulls

[adigal]

50. I have done dog rescue for 5 years, and I had to put a dog down a few weeks ago

He attacked and killed another dog I have, and he tried to go after another dog and kill him. I would have placed him in a responsible home with the understanding that he was not to be near other males, but he also would grab younger kids by the sleeve and drag them around "playing." We brought him up from the south when he was about 10 weeks old, and he was about 18 months now.

In the 4000 or so dogs I brought up, I have never had a dog just attack another dog unprovoked, with no food around or anything. He was a pit mix, but I have had lots of them brought up, and they don't behave like this boy I had. There was something twisted in my boy.

The three dogs that attacked your dog were acting as a pack, and your dog was an invader. Perfectly normal for any dog, even labs. I have see labs act in a pack. But the owners should be fined, and should have to pay your vet costs. Maybe, then, they will act responsibly. This is 100% owner error.