No punishment is too severe.
Inmates will deal with them; count on it. They will have to be in PC or end up room temperature!
“No punishment is too severe.”
Oddly I do not wish them the death penalty thou they well deserve it. I wish them jail in the general prison population. Their time there will be hell on earth physical, emotionally and sexually until another prisoner puts a shive in his chest. Prisoners kill child abusers.
I'd be in favor of skinning them alive.
Save money with an extra long rope. One at each end. Loop it around a strong branch and tell them whichever kills the other first when they are hanged will be released. Watch the fun and forget to release the other.