Susan Rosangrant The Shootings at Columbine High School

This was required reading this week in my public administration class. I found parts of it almost comical with misinformation. I tried to find a version I could link here but all the ones I found, you had to pay for. If anyone is interested in reading this it's part one The Law Enforcement Response. I didn't care to read part 2 after seeing how careless she was with research on part one.

How do they always find the most incorrect literature about the shooting to be read and taken as a fact.
I don't want to read it, it would just make my blood boil.