It's impossible to escape the story of a young man who shot a number of people in California. He was questioned three times by police, but was said to be ok because he was "polite".
Statistically, these tragic deaths cannot compare to the major causes of death in the USA, but are considered extremely important by the government-controlled media because they are used to try to convince people to give up their guns. The number of shootings can be increased at will by creating more shooters through MK-Ultra, so you can expect more.
People continue to buy guns at record rates. The history of weapons control goes back as early as the control of iron weapons by a government that had Israel under slave-control.
Now there was no smith found throughout all the land of Israel: for the Philistines said, Lest the Hebrews make them swords or spears. 1 Samuel 13:19
Mass killings will continue, some of them even committed by people not taking psycho-active drugs. But the ones you can predict are far, far greater. They are the product of the number one killing nation on earth, the United States. They would have you concentrate on one-man crimes, while they fight endless undeclared wars, destroy our crops with genetic modification, pollute the atmosphere with chemtrails, and let radiation roll over our land unoted--much of it of domestic origin.
Amazing the number of killings that take place to "protect" us from others. But who will protect us from the real mass murderers?