Vet might have killed my kittens, help with 2 other kittens?

I'm really sorry to hear about your loss. I have a kitten too and I cannot bear the thought of losing him. I cannot tell you what the problem is, but I have a bad feeling about this vet. I suggest you phone him and tell him about what happened. Also ask him for an explanation. If the explanation is not good enough you can report them to your local SPCA for an investigation. Try calling them to see if they can help you. Our animal anti-cruelty league has helped me a lot and they are very affordable. Perhaps they can do the same for you. Strongs!