They have the killer and the guns he used so why are the police wasting time tracking down the origin of the other guns? My guess is that those pigs are going to try and hang a crime around the neck of whaterver poor shlub sold or gave the guns to the Pastor. That will teach those proles not to sell guns to one another.
They will use it to bolster the 40% fantasy to get “100% background checks” on transfers.
Plus go after the original owners in multiple civil suits.