Only one would face trial for her murder and the stunning outcome would tear pam s family apart. here s keith morrison is before midnight. a few minutes after sunrise on theht morning of november 4t 2014, david zimmerman rose to his bed14 in the quiet suburb o bloomington, illinois, eager to dispose of a small worry that had been nagging at him all night. he matted across the room to his bedroom door. i had woke up and walked out into the kind of main hall way we have and the lights were still on. the lights he left on when he went to bed. which meant? what? david was 17-years-old, the eldest of pam zimmerman s three children. they not uncommoningly left the lights on when she worked late at her financial planning business or stepped out with het new man him typically when she got home, she turned the lights