According to this article in
The Onion, a ban on the procedure led to the back-alley performance of them.
Lethal Injection Ban Leads To Rise In Back-Alley Lethal Injections | The Onion - America's Finest News Source
This is why Roe v. Wade must not be overturned!!!
"Unable to wait for the U.S. Supreme Court to determine whether the practice constitutes cruel and unusual punishment, Kevin, like many young governors who find themselves saddled with an unwanted death row inmate, has been forced to take desperate action and obtain an illegal back-alley lethal injection."