How about putting him on a diet?

A convicted murder who raped and murdered two girls in the 1980s is fighting execution on the ground that, because he is so fat, his veins are bad and it will be hard to get the right dosage for the lethal injection.  He also contends that his migraine medicine will make him resistant to the injection.  I have a few simple suggestions, given that this guy is in the prison system’s control:

1.  Feed him less so he loses weight.

2.  Stop his migraine medicine.

3.  Find his big veins before the execution and place an IV needle in it ahead of time.  No muss, no fuss.

Then kill the guy.