andrea canning (voiceover): in february of 2015, chris jones went on trial. friends took the stand to help prove the prosecution's theory. when chris realized he'd lost control of heather, he took control in another way. find that man guilty of first degree murder. andrea canning (voiceover): prosecutors laid out their case to the jury. it wasn't an accident. andrea canning (voiceover): assistant district attorney danielle mccollum. she didn't fall down. there was a struggle. he did strangle her, either with his hands or however he did it. he was up close and personal to her. and he was there watching that breath go out of her. andrea canning (voiceover): but the defense stuck to the story chris told on tape, that heather fell and died after they struggled over a cell phone. he never admits to killing her. andrea canning (voiceover): the judge asked chris if he wanted to tell his story to the jury. i think that i will choose to not testify. andrea canning (voiceover): it was now up to the jury to decide his fate. friends and family filled the courthouse, wait

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