oh my god moment i just shot my wife. >> in moments, he became frantic, hyperventilating. moeng. >> oh my love. >> the question, was it for real? >> the way he switched up emotions from when he starts cpr, it sound like overacting. >> and investigators also noticed how lars' story evolved over just a few hours. on the 911 call, he set the scene this way. . >> to responding officers, he changed the order of events, telling them, he saw that light after he got out of bed. y you. >> and lars added various new details to his story.