The rise in mass shootings in the recent years is a creation of these deranged beings, who have been repeatedly prevented by the Galactic Federation of Light to start a nuclear war, and anything that would lead to another world war. So they resort to lower scale damage in order to instill fear in hopes of having people surrender their freedoms.
Mass shootings are not carried out only by the one perpetrator you see on the news. These vulnerable individuals, who are on medication for various mental conditions, are targeted by your CIA and FBI agents. Who also use directed energy weapons to target the brain with different laser frequencies, which disrupt the normal function of neurons, leading to the individual’s confusion and breaking point.