For Gosh sakes, it isn't like LE is going to go to this guy's house, haul him out in handcuffs, and take him into custody!! Come on, people!! Let's be realistic here!! LE will look at the site, take into consideration if there is any possible connection to the victims, then they will run checks on the person...quietly without disturbing him or his family in any way. They might drive by his house. They might inquire about his job in a covert way. They might even talk to a neighbor. They won't be approaching him unless they find there is a reason to do so. Do you honestly believe that every call they get from people that they will go pick em up and haul them in for DNA testing?! No freaking way!!! Get real!!