mclelland and mr.g to get away from the gunfire. >> reporter: cynthia's body was in the middle of the living room, and she clearly wasn't expecting anyone. >> she's not dressed for company. she's tryin' to get dressed. mr. mclelland's the same way. he's in jogging pants with no shirt on. >> reporter: there were shell casings next to mike's body, indicating the killer had finished him off at close range. >> the suspect was standin' right on top of him, over him, shooting him. >> reporter: to investigators, like lt. jolie stewart of the sheriff's department, it looked like a carefully planned operation, an ambush, just like the hasse murder. >> did the scene speak to you at all? >> i felt like whoever went in there had a mission. and they did it quickly. and they did it efficiently. and they were out. >> reporter: later, records from the home security company would confirm stewart's observation. the killer entered the house at 6:40 am, and was gone just two minutes later. twenty shots fired in 120 second