Yes the only did their job, but this is the US, if public opinion shifts to "the guys in the gunstore are partly responsible" then they are screwed imo. Lifelong screwed.

I myself once rescued an elderly women from the waters while surfing. Her husband then sued me! He felt that while saving her life I injured her! This whole juristic process took well over a year. Even though it was "only" about a claimed, mild concussion. I was acquitted on all accounts, but I still never want to relive something like that ever again. It made me sick.

Now think about these unimaginably, unimaginably tragic murder and what the consequences of that could be? Honestly don't really know how I'ed reacted. Just further shows how incredible, incredible inhuman and cruel this murders are.