I think fentanyl is a great solution, if you’re going to allow the death penalty, which I’m against. And it’s more than just a bullet. Read the SCOTUS decision that banned firing squads. The cruel and inhuman part isn’t even the pain felt, it’s the terror inflicted waiting for it to happen. Psychologically it is far worse waiting for a gun shot than an injection that will put you to sleep and numb you. Mentally there is a huge difference. It is psychological terror, and therefore cruel and inhuman punishment.