The DoD has posted a copy of the transcript of Khalid Sheikh Mohammed's confession. This is a more accessible copy than the one I linked below because it is in PDF format.
Opinion Journal lists KSM's 30 terror plots (the list has 31 items, one is the murder of Daniel Pearl). Seems that only three succeeded. Those three caused more than 3100 deaths. Is there a Hell hot enough for someone like KSM?