>> she then opened the door and noticed that her husband was laying at the bottom of the stairs. >> she told them she thought she saw somebody moving in the bushes near the stairway but she wasn't sure. >> initially i think police were looking at perhaps a robbery of some type. >> detectives combed the parking lot surrounding the area, but found no one on this cold, dark december night. >> there was a man who lived behind the office building who heard the shots fired, who later said that -- he said, somebody's getting murdered out there because of the order in which the shots were fired. they were very calculated. >> it wasn't like bang, bang, bang. it was bang, pause, bang, pause, a space between each of the five shots. >> which sounds more like, what, an execution? >> you could take it that way, yes. >> at the top of that stairway were a few clues. bullet holes sprayed in the wall, sequins from marty's holiday suspenders littered the