and i walked out of the door. that was the last time david saw his dad alive. jeanne wasn t doing with dad was doing to. was jeanne gonna get the boot? i thought so. i thought that dad was being a little too hard on gene. dad maybe you should back it down a notch, if you re gonna fire him just fire him. he was one of the main suspects. police got a break. they discovered dna on that zip tie found around melbourne s neck. they immediately started swapping suspects, hoping to find a match. i have over 80 dna samples that i have collected from everybody connected to this case. did you interview all those people as well? all those people had been interviewed by me or at least one of the other 3 to 4 detectives that had assisted with that case. 80 people? yes. clearly it would be a tough case to crack. is it like fighting a suspect in a haystack? in a stack of her specs probably.