torrez." shot in the dark. a tactic he'd picked up at a seminar for cultivating informants. >> and the patrol officer that is next to me starts kind of kicking my foot. and he's got an explorer scout who's riding with him -- a young hispanic female. and i look at her name tag and it was "d. torrez." turned out it was debbie torrez, cathy's youngest sister. >> reporter: who just heard you ask that question. >> correct. >> reporter: you had no idea it was her? >> i had no idea. >> reporter: debbie torrez -- cathy's baby sister -- was now 14 years old. eager, her mom says, to assist police because of everything her family had been through. >> she remembered that when we needed help, people came to help us. so she thought it was her turn to help others. >> reporter: which is why debbie was in the park that afternoon, and how she heard daron mention cathy's case. that is a weird coincidence. >> we don't believe in coincidences. >> reporter: to daron wyatt, it felt more like fate. and just months la

the cathy torrez case grew colder by the day.ge between cathy's sister tina and sam's brother armando. you and armando got divorced. >> yes. >> reporter: this have something >> no. definitely it was all intermixed. >> reporter: daron wyatt was promoted to detective sergeant and his caseload shifted to other types of crime. but he never forgot his promise to mary. in part because of a milestone in his own life. >> my first daughter was born. and i remember going to mary shortly after that and looking her in the eye and saying, "i know -- i know now how you feel. i know it. i can feel it myself. i'm a dad now. you haven't given up. i won't give up." >> reporter: in 2003, nine years after the murder, daron once again approached a friend in the d.a.'s office. >> i said, "i've got a cold case that i need you to take a look at." and he physically stops walking and he says, "if it's the case i'm thinking about, i'm not going to touch it." >> reporter: but daron was persistent. eventually he persuaded his friend to take cathy's case back

darwin martinez torrez is charged with killing a 17-year-old.nager was beaten to death last month as she walked to a mosque in sterling, virginia where she was attending a ramadan prayer session. investigators are cng

even when they don't. [ applause ] >> torrez was a college student visiting family in orlando.ht. he roy fernandez. just 25. tevin crosby, 25. angel padro. gilberto menendez. javier. 11 kids, beat cancer twice, often went to pulse with her gay son. she supported him that much. ♪ if you have moderate to severe plaque psoriasis,... isn't it time to let the real you shine through? maybe it's time for otezla (apremilast). otezla is not an injection or a cream. it's a pill that treats plaque psoriasis differently. with otezla, 75% clearer skin is achievable after just 4 months,... with reduced redness,... thickness, and scaliness of plaques. and the otezla prescribing information has no requirement for routine lab monitoring. don't take otezla if you're allergic to any of its ingredients. otezla may increase the risk of depression. tell your doctor if you have a history of depression or suicidal thoughts... or if these feelings develop. some people taking otezla reported weight loss. your doctor should monitor your weight... and may stop treatment. side effects may include diarrhea,

the building near the torrez hot spot of waikiki was built in 1971 before sprinklers were required. >> without a doubt, if there were sprinklers in this apartment, the fire would be contained to the unit of origin. >> some residents of the building trapped, high in the sky. >> i looked down, i could see the billowing smoke coming up. i heard three women's voices screaming, pleading, moaning, "please help me." >> overnight firefighters conducted room-to-room searches looking for victims or survivors. this fire coming just one month after a tragic fire at a high rise in london that left around 80 people dead. in london, anger in the aftermath, and in hawaii this and the question, could this fire have been prevented. lots of questions this morning as the cause of that fire remains under investigation. >> morgan, thank you. >>> now to the questions that continue to dog president trump about his campaign's alleged ties to russia. this morning we're learning more about the russian-american lobbyist who met with donald trump jr. last year, a story that nbc news broke on friday. his presence