Klebold was clinically depressed/suicidal

Dylan Klebold suffered from clinical depression and was suicidal. Sources: Sue Klebold, Dave Cullen author of "Columbine"

Depression is a risk factor for school shooters, bombers. Sources: Dave Cullen and https://www.cnbc.com/…/inside-the-mind-of-nikolas-cruz-and-…

WVPI recommendation: Screen our preteens, teens for clinical depression