Rescue Cat, My dog killed a cat that I rescued Options

[Rhapsedy]

I need help! I rescued four cats and rehomed three of them. The other cat (Oscar) had Leukemia and I had him on a waiting list at a rescue that takes cats with Leukemia. I tried to find him a home but nobody was interested because of his Leukemia. Oscar was a VERY sweet cat and because of me, he is dead!

I have been bringing Oscar out in my living room every night and my dogs have been fine with him. I have been keeping Oscar in a spare bedroom the majority of the time. This morning I opened the door so he could come out if he wanted to, I meant to close the door before I went to work but I forgot. When my husband came home he found Oscar dead. He had some blood around his neck area. I think it was my Jack Russell Tango that killed Oscar because he has claw marks on his head and neck.

I completely blame myself! I have rescued many animals and I'm a huge animal lover. I will never forgive myself for not closing that door and putting Oscar in such a horrible situation. I don't know how I'm going to live with myself knowing I caused Oscar's death.