The Arkansas Supreme Court today rejected Randeep Mann's argument that a judge should have allowed him to prove he wasn't responsible for the explosion.
The justices upheld a lower court's 2013 summary judgment that Dr Trent Pierce was entitled to damages from Mann in the bombing.
Pierce was severely injured by a grenade that was hidden in a spare tire outside his West Memphis home. Mann is serving a life sentence for conspiring to use a weapon of mass destruction and other charges in that attack.