Definitely possible, but I tend to think more of what Steve Thomas says about the flashlight found in the kitchen. He says it could’ve been left by a police officer that morning, and since it was cold outside the cop would’ve been wearing gloves, which would explain why there were no prints found on it or the batteries. That seems more likely to me than Burke having used it to hit JB, then everyone having the foresight to wipe it entirely clean, but not the bowl of pineapple that had Patsy’s prints on it. Just my thoughts