april 2009 in a louisville courtroom where james and kenneth williams stood trial for the murder of erin harper attempted murder of little erika. for harold harper facing the defendants was simply too much to bear. >> i couldn't look him in the eye without rage and i was just afraid that i'd mess everything up. >> it was an emotional trial. coprosecutor mark baker with two young daughters himself cried in his opening statement. >> once he determined that there's still life in that little body, you can imagine what the officers did there at the scene. >> prosecutors maintain that the defendants came to steal erin's pills and money but then williams changed the plan after williams fought back. >> he told me he snatched the purse from her, but she wouldn't let go of her purse and he shot her. >> turner's testimony also helped fill in another piece of the puzzle. why they were in the house that night. it appears that after erin became too ill to work she found a way to supplement her income selling her prescription medicine. she had invited her friend to buy pills before, but this time the deal det