I had a potential fox attack and lost two chickens!

My legbar was killed and blue ameraucana was taken through under the fence. I usually stay with them when free range, but I went in kitchen to get some lettuce for their treats. Just a couple minutes, I came back and found a dead body and feathers everywhere. Clearly, my blue ameraucana was dragged under the fence to the woods.

I couldn’t find her. My splash marans has big holes in her back, but she acted ok. I cleaned her, put some animal bleeding stop powder, and sprayed wound treatment. Anything else can I do?
I definitely will need some chicks from Dennis this year. My son is still crying and locked himself in his room. It’s all my false not watching the chickens.

They will not free range anymore.