Authorities have been aggressively investigating potential mass shooters since the white supremacist terrorist attack at a Walmart in El Paso, Texas.
"In the four weeks since a 21-year-old alleged white nationalist was charged in the slaughter of 22 people inside a Walmart in El Paso, Texas, law enforcement authorities have arrested more than 40 people as potential mass shooters — an average of more than one per day," the Huffington Post reported Saturday.
"A HuffPost survey of these arrests likely didn’t capture every one, but it offers a snapshot of the types of cases that law enforcement officials face in a country with easy access to weapons capable of killing a lot of people quickly. The cases range from allegations of vague social media threats from juveniles that set parents on edge to well-developed plots from people who had access to weapons and appeared to authorities to have been planning a mass murder," HuffPost revealed. "There were roughly a dozen cases involving right-wing ideology. There were at least a dozen alleged threats against schools. There were half a dozen cases involving alleged threats against Walmarts."
Patrick Crusius was arrested for the El Paso attack, which killed 22 people and injured 24. He reportedly published a right-wing manifesto on 8chan shortly before the shooting.
Read the full report, which includes background on the individual cases.