An officer from Jeffco Public Schools listens on his radio as students leave Columbine High School on April 16, 2019 following a lockdown at Columbine High School and other Denver area schools. (David Zalubowski, AP)

Jeffco Public Schools’ security chief was already losing sleep over the Columbine anniversary. And then this week happened.

John McDonald often spends the night at the school in the days before the painful anniversary, but got little sleep when a woman threatening violence came to Colorado

Education Primary category in which blog post is published
SunLit Interviews Primary category in which blog post is published

How a discarded title for her previous book became a Colorado author’s inspiration for the next one

"Burning Ridge" didn't quite fit the last K-9 mystery Margaret Mizushima wrote. But it set her on a course for a new type of crime novel.

Energy Primary category in which blog post is published

Tri-State, under pressure from its member co-ops to change or fall behind, is shifting to renewable energy

Giant power provider on the verge of deal with departing utility says it will shutter coal-fired plant in Nucla two years early as it retools carbon-emissions goals.