Sorry about the little guys fate. Not sure if you posted about it before, but is the issue it's a new snake for you and it's not eating ft either? I have excellent luck when I'm as sneaky as possible about feeding babies at night. I wait until lights have been out for a while and the room has been quiet then try to stay out of sight while offering ft rat pups with tongs. Make sure it's being heald by the scruff of its neck and kept at a more natural position while putting into the enclosure and not just dangled in front by its tail. I hope you have better luck next feeding attempt and sorry again about that pups fate!