Sorry to harp on, as I've said this countless times before, but I believe a far more effective deterrent to gun-related crime would be the return of the professional hangman.
Unfortunately, the bleeding heart brigade disagrees with me and, as we all know, their word counts.
I'm with you in principle. The only argument that has made me re-evaluate my position is the possibility of the offender taking information to the grave that might help solve other crimes and thus resolve victims' and their families' heartache.
i have therefore come to the conclusion that total and permanent solitary confinement is the key, with the only "contact" being via a camera/microphone which would be monitored by random "guards" at random times on the offchance that the offender says something worth listening to.