Look at this pattern...I understand there are some who want to either give the primary suspects in this the benefit of the doubt (which they have shown repeatedly they RICHLY do not deserve to get) or want to keep us from shooting ourselves in the foot on FR. I can accept the second motivation, but not the first.
That said, this has the look of someone holding a squeeze bottle of liquid in front of them, close to their body, squeezing and spraying as they walk along. I have seen this pattern before.