mary higgins, tracy's good friend.er one was the prime suspect. >> she said, well, john pitman iii is in a lot of trouble. that he is the one that, you know, there are going to arrest him. they are after him. >> but weeks past without an arrest. tracy was becoming increasingly frustrated, her friend said. some nights, she would drive passed law enforcement to see what was going on. >> she would know how hard the attorney was working, because she would come by and see if the lights were on and the third for. >> tracy feared that if that her ex had hired dustin wehde, and the second intruder to stage a home invasion, and gotten away with it. there was nothing to stop him from lashing out again. the custody battle was still raging in the courts. but while treacy rooted, investigators were showing interest in a suspect. someone closer to home. coming up! portrait of a marriage. the relationship of tracy and michael, under the microscope. >> it was just that feeling of, this isn't good. this is cold. this is bad. >> when da