Michigan school shooting shows how violence can transition from online threats to real-world tragedy
- Written by Mia Bloom, Professor and fellow at Evidence Based Cyber Security Program, GSU, Georgia State University

The warning signs were there.
In the days leading up to the deadliest school shooting of 2021 in the U.S., 15-year-old Ethan Crumbley made a series of disturbing comments and messages – both online and in a drawing. He had been caught at school searching online for...