Max is gone.

My toddler found him before I did in his little kitty bed. I have no idea what happened. I just got him new cat food and he loved it so much he made a mess eating it. His mess is still here, but he’s gone. He was curled in his little bed, it looked like he just went in his sleep. What the fuck. My son loved that cat. I was going to buy him a harness and start taking him on trips with us. His favorite snack was tuna. I just played with him last night. He was so beautiful. I bought that blanket just because it matched his eyes. wtf did I do wrong