>> ear witnesses saw happened. >> tom schaeffer knew that if he had any hope of getting tom foley acquitteded to prove the sound the boys heard was anything other than a gunshot. just two weeks before trial began, while inspecting crime scene photos, schaeffer found what may be the key to his client's freedom. >> has a tiny piece of evidence given tom's defense team a glimmer of hope? >> coming up. >> i said, ken, is that what i think it is? it was one of these, holy crap. >> it was to us just a perry mason moment. >> when dateline continues. shipstation saves us so much time it makes it really easy and seamless pick an order print everything you need slap the label on ito the box and it's ready to go our cost for shipping, were cut in half just like that go to shipstation/tv and get 2 months free news reporter: the defense began presenting just like that its case in hopes of convincing the jury that foley is innocent-- josh mankiewicz: midway through tom foley's trial, the talk around coldwater focused on the damaging testimony of skylar >> the defense began presenting its case of in hopes