investigators believed ashlea harris was pistol-whipped. s glock 19 was found in the black infinity, the prosecutor tested it and the results were conclusive. >> it came back positive with ashlea's dna on the gun so that was significant. >> hearing all of this was so hard on ashlea's mother and loved ones. >> nope. i went back into the room and she was consoling me. she shouldn't be consoling me. >> the brutality of the murder was never far from the prosecutor's mind. >> i thought how painful and awful the last minutes of her life. it was terrifying. absolutely terrifying. >> even that, they said, even that appeared to be part of the plan. this wasn't just about robbery or even revenge said the prosecutor. >> discussions that carter cervantez had with people where she expressed certain, guess you could call them, fantasies involving killing people. >> she remembers one discussion at work. >> it was just us and we were folding clothes and she mentioned she had thought about killing someone before and whether or not she could watch them die. >