![](http://media.mwcradio.com/mimesis/2016-02/12/Sioux%2BSteel%2BLogo%20KSFY.jpg)
Lennox, SD (KELO-AM) The Sioux Steel Company on Friday observed the one-year anniversary of the workplace shooting at its Lennox location that left two dead, and two injured.
There was a balloon release, eight minutes of silence, and a plaque dedication for Jon Richter. Richter was shot and killed February 12, 2015, by Jeffrey DeZeeuw of Sioux Falls, who was later found dead in a burned out semi-truck.