I've been thinking the same thing. I think most have been assuming that the house was dark and quiet. Maybe it was, maybe it wasn't. Did anyone sleep with a tv or radio on? Were any lights left on?The second photo makes me wonder if the Good Vibes LED sign was on when the murders took place (apologies if this has been discussed, trying to keep up!). It also makes me wonder if any other decorative lights were left on in the house, I know when I was younger and living with roommates, we usually left fairy lights/beer signs on at night. That would definitely help visibility if a stranger were walking through the house.