Winnipeg Sun Thou shalt not kill. He chose to indiscriminately kill 168 innocent people, and permanently damage and alter the lives of countless others. It's just too bad his execution had to wait so long. Probably would have been a lot less painful for the families and friends of the victims if he'd been out of sight, out of mind and off this planet almost immediately after committing the deed.
Some crimes just scream for the death penalty, and the sooner the better.
I was going to use the word monsters here, but really, there isn't a word nasty enough to describe people who abduct, sexually assault and then kill children. Some crimes are so blatantly unacceptable, so horribly vile, that as soon as guilt can be established beyond any shadow of a doubt, the perpetrators of these crimes should simply be removed from the living. And of course that proof has to be as solid as it is in the McVeigh case, which means some of the guilty will get to live. Frustrating, but that's how clear cut it has to be. Because if you do execute an innocent person, the real murderer has succeeded in getting away with yet another murder, employing society and the law to do the deed.