Well as much as it may suck. I guess this was a lesson learned in your case. A positive thing is, it can give us a glimpse on things not to do or things to make sure to constantly check on with our snakes. We appreciate the fact you came out and asked us questions or possible reasons. You found the answer out yourself and had no problem admitting that it was your mistake and you will be aware from now on.

Hope all goes well. Give them a proper burial and hopefully something positive can come out of this.