My baby corn snake died in my hands last night. I was wondering why? A reptile pet store gave me a few ideas .?

Feeding baby snakes frozen pinkies CAN kill them. I suggest feeding them live prey until they are a little older. I had to go through the experience the hard way. If you are feeding your baby snake frozen pinkies and are noticing that it isn't sheding correctly, then you may want to reconsider switching over to live prey.