It’s half the story. The other half is that a dangerous 18 year-old with a documented history of aggression a mile long and ten miles wide was able to buy an AR-15 with no background check, which is the way Republicans want this system to function.
White supremacists and militias have infiltrated police across US, report says
right wing lone wolf attacks will continue to happen no matter what gun control you pass as of course they are friends with police who will always be willing and able to supply their friends.