maliek kearney had lied to them.aithful to karlyn for starters. >> but more critically about what happened the night of karlyn's murder. >> stay at home, text on my phone. >> if you have somebody that can account for your whereabouts during the time of the murder, why wouldn't you offer that to us? why would you keep that secret? >> the detectives had to consider that maybe maliek just didn't want to admit he was cheating on his wife with dolores. they took a closer look at this girlfriend, who told them she and maliek hooked up when they were both serving in kuwait years earlier. then, when harding and meyers examined dolores's phone data, they learned she also lied. about owning a gun. >> she told me that she was almost ignorant about firearms. but in her phone i could see that she was looking for a very particular firearm. >> on her phone there was a text that read "my last. 357 i paid 400. so i want to stay in that range. " detective meyers dove deeper into dolores's life. >> my data guy here starts going through