our theory all along was that rob hall had executed emmett corrigan with two successive shots. turned to face his wife, attempted to commit suicide with the third shot. the theory back up by forensics the shots were fired by close range, two or three feet. a heavy concentration of gunshot residue on only robert hall s hand and one dna on the trigger guard. the dna matched that of mr. hall. i think that robert hall went to the walgreens in order to confront emmett corrigan. that he took a loaded gun and rob decided that was his opportunity to get his candy back by killing emmett. why did he talk to emmett for eight minutes before he fired? the store was closing said the prosecutor. people were going home.