To be sure, no one is feeling bad for Bin Laden in the sense that no one thinks he was a wonderful human being. The question seems to revolve around whether to take pleasure in the death of another and whether exuberance is called for and/or whether the exuberance shown by some is unseemly.
I shall not pretend to false sensitivity. An evil man responsible for the death of thousands of innocent civilians has met his end. Nor is this the case of someone who has turned away from evil. To the contrary, he continued to urge the death of innocents, and continued to call on his followers to wage war in the name of his beliefs. It is not a question of revenge, which some disdain. It is not even a question of justice, although I believe that was done in this case. It was the killing during an attempt at apprehension of a man dedicated to spreading his doctrines through violence and death. It is, bluntly, pleasing to me to see such evil come to an end as it is pleasing to me to see other sources of evil ended or contained.
A friend of mine on Facebook quoted Mark Twain as saying: "I never prayed for the death of any man, but there are some obituaries I have read with great relish." Still, I have little patience for those who treat this as if it were a sporting event. It is a serious and solemn thing to kill a man, even if, to use an old phrase, he needed killing. I exclude from this condemnation, however, those whose lives were touched by this man's evil. It is not for me to judge parents who rejoice at the death of the murderer of their children.