reduced to four years. >> meanwhile, years have gone by and diverse ex-husband, tony, had not gone to trial for murder. he sat in jail all but mute. his lawyer claiming -- that might prevent him from ever seeing a judge and jury. coming up, -- eight years after melissa lewis's death, tony villegas would stand trial, but what would a jury make of such a strange murder? >> you have these domestic homicides all the time. but this one had a twist to it. >> when dateline continues. >> when dateline continues >> when dateline continues ♪ breeze drifting on by you know how i feel ♪ [man: coughing] ♪ it's a new dawn, it's a new day... ♪ no matter how you got copd it's time to make a stand. ♪ ...and i'm feelin' good ♪ start a new day with trelegy. no once-daily copd medicine has the power to treat copd in as many ways as trelegy. with three medicines in one inhaler,