investigators looking into melissa lewis's murder had been thrown a curveball. so involved her best friend, deborah. both denied melissa knew anything about it. then, the massive fraud was ruled out in a factor in her death. now, prosecutors were ready to bring deborah's ex-husband to trial. here is dennis murphy, with the conclusion of betrayed. >>> a funny thing happened to tony vieques on the way to the courtroom. he had exhibited bizarre behavior and was declared mentally incompetent to stand trial. still in custody, he was in and out of treatment facilities for years, until doctors found him competent again. finally, in the summer of 2016, eight years after the murder, tony went on trial. >> tony vieques, the defendant in this case. >> prosecutor sherry tate argued that tony, fueled by a jealous rage, waited in the bushes for melissa to come home, followed her into the garage and then launched a brutal attack on his wife's best friend. >> is a hands-on personal murder. it takes time, it takes premeditation. and why? because she was a friend. >> with the resi