. >> the letters and phone calls were from janet hancock, the pastor's wife. evidence that either janet hancock or matthew's sister-in-law lisa had anything to do with natalie's murder. matthew mirabal was tried and convicted of first-degree murder and was sentenced to life in prison. after the trial, lisa mirabal divorced matthew's brother, marcus. troy and janet hancock also divorced, and the apostolic church in longmont disbanded. natalie's daughter, michaela, now lives with her grandmother. >> michaela knows that her dad murdered her mama, took her life. there's not a day that doesn't go by that i don't think about you. she doesn't know the violent part about it. she doesn't know anything about what he did to her, nothing. i'm saving all of the newspapers. when she's older, maybe 16, i'll bring them out to her -- i don't know exactly. the time will come. you know, i will do that when i cross the bridge. >> investigators point to this case as a textbook example of how forensic science can decipher a complicated crime scene. >> this case wouldn't have been s