If true, that means they are conducting surveillance on law enforcement officers working on this case, probably right under their noses.Well, one of the Fox guests addressed that, said that wasn't likely, that this was a random shooting. OTOH, it's probably not something LE would like to come to terms with, or even admit publicly.
This, on top of earlier indications that the perps were getting law enforcement info from the inside. Might just be those scanners. Or there might be a mole in the task force.