While there crimes may have been horrible someone in 19 states accross the USA who was 16 or 17 when they commited murder could themselves be killed by the state for there crime. I am personally against capital punishment but I have thought it one of the most unresnoable things the US does, kill it's own children.
How can someone who cannot vote or drive be sentanced to death.
Here is the link it has a 5-4 decision.....just like most of them.
http://www.msnbc.msn.com/id/7051296/
This ruling saved 70 lives.