The more I see the photos the more confusing it is. Look at Photo 9, a photo of the exterior, where the state says the hose was left on from 3-4am until 1:30 the next afternoon...Are you kidding me? That would have left a larger puddle than that! There would have been water all the way down the path, not just a small spot like that.
And, MF said she could hear the hose running when she got there.
Unless someone gave Mr. G a drink of water from that hose,,,,,but, wait, Mr. G had to be in the house , it was freezing cold out that night! Temps dropped to freezing, and I doubt he was in the garage either.
Maybe she heard something when she walked through the garage ... hard to say.