Oxford lawyer Tom Freeland has a series of blog posts up at his site that go into some detail on several of Haley Barbour's pardon recipients. Here they are:
Gov. Barbour’s last day pardons: Who are they? some notes on a few of the homicide cases
More Notes on Gov. Barbour’s last day pardons: The homicide cases
Some press reactions to the Governor’s pardon grants
Gov. Barbour’s last day pardons: Who are they (fourth post of a series)
Good stuff in there, as he covers about half of the homicide cases Haley Barbour excused.