Anyone who has seen movies like Casablanca or The Usual Suspects know that in difficult-to-solve crimes, frustrated law enforcement personnel will occasionally resort to the old fashioned technique of just rounding up all the usual suspects and questioning them.
About 1999 or so the glass bird feeder of one of my Aspen Point neighbors shattered and he/she assumed that it had been shot out. It could also have been local kids with an air rifle, hail, or freezing water expanding in the feeder.
I was quite amused when a St. Charles County Sheriffs deputy came by the farm and asked if I knew anything about the "shot out" bird feeder. Presumably, a berry farmer is thought to be unfriendly to birds and thus one of the usual suspects.