been identified as mollie olgin, and news of mollie's death had reached her family. >> i was in shock. i remember crying really hard, and i was throwing stuff in my room, because it just didn't seem real to me. >> how were your parents? >> really emotional. i'd never seen my dad cry. they took it really hard. >> so did mollie's friends, stephanie and brooke. >> i just remember, like, she's dead, she's dead! and everyone was like, who's dead? and i said, mollie. >> over the next few days, neighbors here began asking the same question -- who had pulled the trigger, and why? finding those answers fell to portland, texas, police detective roland chavez. >> mollie can't give us any information and kristene's in the hospital and she can't give us any information. >> at that point, it's not even clear whether kristene's -- >> going to survive, right. >> tips were coming in.