There were 458 workplace murders last year. They’ve become disturbingly frequent

On the day after Easter 2023, Dana Mitchell went to work, grabbed a coffee and walked to the conference room for the regular Monday morning meeting. She was talking to a co-worker about his tan from a vacation.

She looked up and saw another co-worker, Connor Sturgeon, in the doorway. He was holding a gun.

Read more about the mass shooting at Old National Bank and workplace violence from Senior Writer Chris Isidore for CNN.