The first bomb threat came into John Morrell packing plant in Sioux Fallsby phone on the evening of January 2. There were three more similar calls made the next day.

There were no evacuations on any of the threats but officials had had enough.

A Sioux Falls Police detective was hired and after a brief investigation, a 22 year old man named Nathaniel Martin was arrested.

Officials are calling it a case of a "disgruntled employee." Maybe someone who really didn't want to go into work. Either way, it's a felony.