there was no direct evidence tying isaiah hagan to her daughter's ski murder. no gun. no dna. as at the point where i was prepared for him to be walking the streets. >> the prosecutor urged patients. >> we knew we did not have enough evidence to convict at that point. that's why you go to the end. >> there was one person he one of the jury to hear from. donna, i say is mom. the prosecutor had no idea what she would say on the stand, but he had reason to believe that isaiah confided in her the day at the police station about the night halee died. the mom takes the stand as a reluctant witness. >> yes. >> would a mother reveal something he told her in confidence? tell us what happened. >> i don't remember what question was asked, but the answer that she gave was that isaiah had told hersh he had shut halee and did it accidentally. >> with those words, donna turned the trial upside down. instead of defending her son, she pointed the finger at him. that almost doesn't happen in tv dramas because it's too hard to believe. >> truth is stranger than fiction. >> isaiah's attorney could