The correct answer is:"Many people died and were injured during the riots".
The Detroit Riots of 1967 were the bloodiest that took place in the so-called "Long, hot summer of 1967", in which 159 riots arose in total throughout the US.
The Detroit Riots were mainly confrontations between groups of black people and police. It all started with a police raid in an unlicensed bar, and ended up with 43 dead and 1,189 injured. The Michingan Army Guard had to be sent into Detroit to stop the conflict, and also some air divisions of the US army. They were the bloodiest and worst riots since the Civil War.
The positive reinforcement involves the increase or addition of the stimuli when a behavior occurs and the positive punishment involves the decrease or the reduction of the stimulus when the behavior occurs,
This the reinforcement in the Behavior psychology is the consequence applied to the behavior that will strengthen whenever the behavior precedes a stimulus and the effect may measure the high frequency of the behavior.
Rampage killers often have feelings of shame, which is why they use that shame and bring it out in their rampages, wherein they convert that feeling of shame into pride, when they've started to kill or hurt people.