she texted sam boardman "i'm losing hope, i think he really did it." even though she knew conrad was alive. three minutes later, she texted conrad "the generator will work 100% and quick. i don't get why you don't just use that." >> she's telling her friends that he's missing, he might've committed suicide, when she knows exactly where he is. she's talking to him. >> and then, she made sure to instruct him before he did die that -- that he should write her a suicide letter, and that his last tweet should be to her, 'cause she wanted to get a shout out from him. >> yes. >> reporter: the commonwealth also claimed michelle tried to cover her tracks by sending conrad text messages after she knew he was dead -- like this one, the day after his suicide. "did you do something??! conrad i love you so much. please tell me this is a joke." >> reporter: and she continued sending texts to his phone for months, nearly 80 of them. the prosecution argued she deliberately sent the texts as a way to change her story. "at the time i went along with it because i knew you