http://www.deathpenalty.org/article.php?id=42
The death penalty is much more expensive than life without parole because the Constitution requires a long and complex judicial process for capital cases. This process is needed in order to ensure that innocent men and woman are not executed for...
Verging on 'The Truth' levels of conspiracy there. There have been studies showing paradoxical reactions to Midazolam, where instead of sedating people it gives them convulsions.
http://www.medscape.com/viewarticle/489358_6
A lot of drug companies have refused to supply death penalty drugs...