God have mercy on him, as well.
While I am not a peace Christian, I only support the use of military force as a last resort. Gaddafi's case would appear to be a last resort. However, military victory is absolutely worthless - or it can have a negative value! - without winning the peace.
So, prayers to the Libyan people for rebuilding their country, and for citizens of other Arab nations who seek democracy. They must win the peace, and we must help them where we can and where we are asked to.