Stop Toolan News Today

and im afraid he might use it. >> reporter: a story of sand, sunsets in fatal attraction. she had so much to give. >> she would make everyone feel special. >> reporter: successful at everything except love. then, she found him. >> she fed said she felt so good in his arms. >> reporter: he was handsome and crazy about her. there was talk of marriage. and then suddenly there was talk of trouble. she was frightened enough not to go home. >> she had fear that something would happen to her....

good in his arms. >> reporter: he was handsome and crazy about her. there was talk of marriage. and then suddenly there was talk of trouble. she was frightened enough not to go home. >> she had fear that something would happen to her. >> reporter: it did. >> my sisters not answering her phone. >> reporter: how did love go so wrong? in a surprising twist, it would take not one, but two trials to discover the truth. >> he wasnt convicted of killing my sister anymore, all of a sudden. >> ...

Executive function, coupled with the lowering of the inhibitions through the alcohol, you have all of these swirling together inside this mans head. >> the prosecutors job was to blow that argument away, to argue that tom toolan knew exactly what hes doing when he murdered beth lochtefeld. that he was so enraged by the breakup that he planned and carried out a cold, calculated killing. >> were presenting to your timeline -- >> as evidence of premeditation prosecutor told the court that on the ni...