Just seems to me that if you make a choice (supposedly by free will) then you normally have a reason for making that choice. There are of course reasons to support all alternative choices, but your decision will be based on what you, at that moment in time, decide to be the better reasons. Your perception of what may be the better reasons will be determined by your perspective.. the information you have available, your personality in the main.
Now a free will proponent may argue that it within someones capabilities to choose the choice that they knowingly hold to have the poorer reasons supporting that choice, yet still, there must be a reason for approaching the decision making process in a backwards manner.
Any diversion from this methodology is essentially random. Chaotic. I cannot see how a chaotic decision (if one indeed exists) would make the person making a decision any more to blame for their action than one who acts on the information available.
Is this starting to get confusing?