Police move in after gunman opens fire at ABB in north St. Louis (UPI / Bill Greenblatt)

Police move in after gunman opens fire at ABB in north St. Louis (UPI / Bill Greenblatt)

Authorities report the death toll from this morning’s workplace shooting at the ABB Company in north St. Louis is three, with the suspected shooter among the dead. In addition, there are five people injured. Three of them were listed in critical condition with the other two in fair condition.

The drama began to unfold between 6:30 and 7 o’clock this morning when 51-year-old Timothy Hendron of Webster Groves, described as a longtime employee of ABB, drove into the company parking lot. Police say he took at least one gun – an AK-47 – from his truck, went inside one of the buildings in the ABB complex, and began firing at fellow employees. Several of the employees fled the building when the shooting broke out. Others sought cover on the building’s roof.

When police were initially called to the scene they believed Hendron had left and authorities issued an alert for Herndon and his truck. But police later confirmed Hendron was among the dead inside the complex. It is not known whether he took his own life.

A motive for the shooting is not known but fellow employees described Hendron as a “disgruntled worker.” It is known that Hendron had been among several employees who were part of a class action lawsuit filed against the company’s pension plan.

Audio: Victoria Babu of KTRS updates the situation (1:30 MP3)