My dog died on Sat and I am completely heartbroken over it. I am also feeling tremendous guilt

. My daughter recently moved into her own appartment (from home because we were moving to another city) and could not take her dog, she was going to rehome him and I stopped it. I loved him and the thought of someone else taking him upset me. We moved into our new place 3 weeks ago and have been very careful with our pets. The cat is now an indoor cat and the dogs were only out on leashes because of coyotes. People kept telling me not to worry during the day so we started to let the dogs run and play (only supervised by us never out alone).
My poor dog was taken by a coyote right in front of my husband and I am so upset. He loved me so much and followed me everywhere, if I went upstairs he went upstairs, he was always at my feet or on my lap and now he is gone. I feel like he trusted me and I let him down by not protecting him enough. I also feel like if I had just left things alone and let him get rehomed he would still be ok.
I miss him so much and my heart aches
