I'm surprised they didn't ask for money to stop the execution.  That would be a new twist to the other email scams asking for you to put money in some account.

Sounds like a joke to me--somebody trying to scare you or some disturbed mental patient got a hold of your email address.

Poser 2, 3, 4, 5, 6, 7, 8, 9, 10, Pro 2014, 11, 11 Pro