I'm also curious why LE didn't ask him if anything looks out of place. The Ritters and MH would not know how the house was left when Barry left that morning, but he would. The girls were not there at that point so LE couldn't have asked them and they also would not have been in the house that week to know what was out of place. Barry at this point said he left about 5am to go to Broomfield. LE finds a bike wrecked, her car in the garage, no sign of a break in, etc. Why would they not ask him to see if anything was out of place? Does anything look missing? It's straight to the room for clothes and Barry didn't ask questions and neither did LE. I find that odd. I think they already knew who suspect #1 was and not because they always look at the spouse first, but because of the scenario where he is out of town, he doesn't call 911 but someone else does, he shows up mumbling about a mountain lion, likely because of what he isn't saying while waiting at the bike scene, then what MH had said already when LE spoke with him.