With the question that Bryan Kohbeger posted on other sites asking people that did crime, or had knowledge of crime, how they felt at the time of doing it, what mistakes where was from their crimes and how they got caught, He Acted Like It Was For His School Work, makes me think that BK has thought about killing for a long time, one thing gets me is why those kids, was it that he had went to a party there and saw how easy it would be to get inside the house, remember Sleuthers when young kids are at that age drinking and having fun how many times did they leave the door unlocked, also as for DM, she could have thought that it was one of the other girls boyfriend leaving that night when she saw him, JMO