They both wanted to see if they could get away with it. They had help though. Which is why the screen was cut, to get rid of evidence. The vacuum contained the glass fragments, which were placed on the floor. The fingerprints were a rubber finger dipped in blood for misdirection. Darin would never stop to fumble for his glasses, waking from sleep, to aide his family. And would naturally want to pursue anyone who hurt his own. The child who wouldn't die was attacked three different times. The last out of desperation by Darlie, who couldn't believe Darin failed twice. Blood on Darlie's back from Darin, who stabbed kids, then sliced Darlie from behind. Sock left by neighbor for misdirection, leaving scene with evidence in plastic trash bag. Affidavitt claimed glass from wine glass couldn't be staged. Only if vacuum was checked, that contained glass vacuumed earlier when wine glass was broken where it was. Routier's only vacuumed floor, left area where wine glass stored undisturbed, knowing children wouldn't contaminate adult area. Both love each other. Counting on public, and proud justice system to create doubt. Both knew police would look for one. Both acted suspicous. Police don't seem to want to pursue both, knowing he or she will take full responsibility. Finding third party and pressuring them will lead to the truth coming to light. Possible motive for third party??? Maybe increased property value to home from publicity. Maybe old favor, small town. Am I right?