Mindless thugs operating with impunity will always commit atrocities. As the USA has never had a proper government but merely paid-for politicians eager to do the bidding of their paymasters, it's not surprising that the list of horrors is nearly endless. What is surprising is the absolute lack of awareness of such things. That's a testimony to the Disneyland education provided to US schoolchildren in which fable is presented as truth and the truth is kept permanently hidden.