Half *advertiser censored* policing. Thats why. Cops interview suspects that 90% of the time are dumb enough to instantly allow them to take them down any road they want, allow them to draw conclusions etc, and eventually are pressured enough to make them confess. Sometimes the cops make it fit with the one they feel is guilty instead of where the evidence takes them. I.E...Steven Avery the first time. Dykes is a cop. He would never even agree to be questioned without a lawyer. He would never admit to anything, and he knows they have nothing. It has been 10 years + and they haven't charged anyone. They need to beat the bushes and obtain search warrants to his stuff. To do this, they need a judge to give them the proper documents to search and that would mean that Dykes would have to still have evidence laying around. Not likely...once again, he is a pro. Forensics are the only way this one gets solved. They could find Tara and forensics would still be the only way to figure it out. They need to apply that pressure to Dykes. Until GBI does that, this case will continue to grow colder and colder INHO.