In 2013, the FBI reported fewer than 400 workplace homicides, a decrease of more than 12 percent. But it’s not clear how reliable reports about workplace violence even are. There are serious problems with how workplace violence data is collected.

Timm Crone is originally from Ft. Worth, Texas, but grew up in Seattle, Wash.  Timm has been a storm chaser since April of 1987, when he saw his first tornado while attending the Air Traffic Control Academy in OKC.