Patsy did have latex gloves- LE questioned her about them. She used them when she dyed her hair. This makes sense- when you consider that Patsy's prints were on the pineapple bowl and not the note because the pineapple snack happened before the death and staging. At some point, the Rs obviously became aware of the need to not have their prints on certain things. They may very well have worn gloves when handling the flashlight, but then remembered the BATTERIES (which were previously put in before that day) and removed them, wiped them off, and replaced them. How suspicious is that? The R knew they couldn't deny owning the flashlight if their prints were ever found on the batteries, so they wiped off the batteries. I have to say that there are many things in this case that point to the parents' guilt, but for ME the two things that scream parental involvement are the wiped down batteries, and denying the pineapple snack. That is because the pineapple and the flashlight play a part in the events of the night. The flashlight because it may have been the murder weapon and/or was used to move about the house after the death, and the pineapple because there was no need to lie about it. The only reason they had to lie was because they needed to have LE think they had no interaction with JB that night after they returned from the White's. The time of death was so close to the time they returned that there was no way an intruder would be able to do all that was done that night and not be found by the parents, who were at home.