UPDATE - 10:45AM Friday, February 13, 2015: Lincoln County Sheriff Dennis Johnson reveals the names of the parties involved in the ProTech shooting in Lennox.

52-year old Jeffrey DeZeeuw of Sioux Falls was positively identified as the shooter. His body was found at the burned semi-truck southwest of Lennox. Dental records were used to confirm DeZeeuw's identity.

Sheriff Johnson says according to their investigation, DeZeeuw initially got into an argument with 45-year old Jon Richter of Lennox around 9:30 Thursday morning. DeZeeuw left the ProTech facility thereafter and returned at approximately 2:00PM. At that time DeZeeuw shot and killed Richter.

Next, DeZeeuw shot and wounded 46-year old Kathy Steever of Lennox. The gun shot wound to Steever necessitated a flight to a Sioux Falls hospital via helicopter.

After the second shooting, 45-year old Brian Roesler of Marion confronted DeZeeuw and attempted to get the gun away. Sheriff Johnson says Roesler was struck in the head several times during the fight. Roesler was treated and released for his injuries.

Many facets of the investigation continue as the Lennox Police Department, Tea Police Department, Lincoln County Sheriff, South Dakota Highway Patrol and South Dakota's Division of Criminal Investigation look into the incident.

From our news-gathering partner, KDLT News:

Authorities believe the suspect who shot two people and assaulted another person at a business in Lennox is dead.

Police say a gunman entered a Sioux Steel location called ProTech Thursday afternoon, shot two people and assaulted a third. They were all ProTech employees.

Lennox Police Chief Orville Jorgensen says a male shooting victims is dead, and a female victim is in critical condition. The person who was assaulted is in serious condition.

Authorities say the gunman took off, and nearby businesses and schools were put on lockdown.

The body of a second person was found about 4 miles southwest of Lennox in a burning semitractor along a gravel road. Authorities would not say if that was the gunman, but they believe it is likely the shooter. A handgun was found near the body and the vehicle.

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UPDATE - 7:00AM Friday, February 13, 2015: Sioux Steel remains closed until further notice.

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UPDATE - 6:00 PM: Lincoln County Sheriff Dennis Johnson announced in a news conference that authorities suspect the body found in or near a burned out semi was the shooter who shot two people, killing one, at ProTech, a division of Sioux Steel in Lennox.

"We believe (body in truck) likely is the shooter," said Johnson. "The evidence points toward that."

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UPDATE - 5:11 PM: Sioux Steel released a statement regarding the day's events at their facility in Lennox on their Facebook page and Twitter feed.
 
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UPDATE - 5:12 PM:

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UPDATE - 5:07 PM - According to Lennox police chief Orville Jorgensen, this is what we know at this point:

Two people were shot at the ProTech location at Sioux Steel. One person was killed and the second person was transported to the hospital in critical condition.

A third person was also assaulted at the plant. They are in serious condition. All the victims were employees.

Another person was found dead in a burned out semi truck about 3 miles south of Lennox. No word yet if it is connected to the shooting.When asked if the suspect was still loose, Jorgenson would only say "We believe [the situation] is relatively under control."

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UPDATE - 5:00 PM: One killed in Lennox shooting; second body found in truck. - Argus 911

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UPDATE - 4:58 PM: Police said the shooting happened at ProTech, across the street from Sioux Steel. - Argus 911

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UPDATE - 4:45: According to a live news conference, there is one fatality in the Lennox Sioux Steel shooting and two with serious injuries. There were three victims total: two males and one female. No names being released at this time.

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UPDATE - 4:41 PM:

 

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UPDATE - 4:30 PM: The scene of the Lennox shooting is clearing out. The ambulances are gone but police are blocking the entrances to the development. - Argus 911

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UPDATE: Lincoln County emergency management said police DO NOT have suspect in custody. - Argus 911

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UPDATE: Lennox situation: the suspects vehicle has been located in Sioux Falls, South Dakota. The vehicle was located on N Jessica. - Tea Storm Chasers

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UPDATE - 4:00 PM:

 

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UPDATE: Chief of Police of Lennox is advising they have two separate crime scene, he is not confirming if they are connected. Schools have been released. - Tea Storm Chasers

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UPDATE: Lennox High School principal Tim Raabe says students have been released from school. - Argus 911

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UPDATE - 3:48 PM:

 

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UPDATE - 3:47 PM: Emergency personnel and a Lennox firetruck are on the site of a burned out truck near the intersection of 282nd Street and 465th Avenue south of Lennox. At least 4 police vehicles are on the scene. A police officer said it was an active crime scene. It is not immediately known how or if it is connected to the Sioux Steel shooting. - Argus Leader

 

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UPDATE: Suspects name is Jeffrey Scott Besue lives in SF at 5916 S. Hallow Ave. They just got a report of a suspicious vehicle in Sanford parking ramp that matches description of suspects’ car. - Tea Storm Chasers

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UPDATE: Lennox situation: they are letting the schools out to parents and to school bus, however the school bus route is going to be supervised. - Tea Storm Chasers

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UPDATE: According to Argus 911 police are on scene at the house of a possible suspect in southwest Sioux Falls in the area of 5900 S. Hallow Avenue. Tea Storm Chasers reports that the suspect's name is Jeffrey Scott Besue. - Tea Storm Chasers

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About 2:15 PM Thursday afternoon reports came from Sioux Steel about a shooting. The man reportedly is from Sioux Falls and lives in the southwest part of the city.

According to the Lennox Police Chief, two people were shot. Now word on their condition at this time.

Multiple police units and a medical chopper are on the scene as a manhunt for the suspect continues. The suspect is described as a 6-foot, 4-inch man weighing approximately 250 lbs, balding and wearing a blue shirt.

Lennox schools are in lockdown and authorities are continuing their sweep through Sioux Steel.

According to Argus 911, the sheriff's office said there is a secondary scene south of Lennox that may or may not be related. Sioux Falls police are telling people in the area of South Hallow to stay in their homes.

Rob Warden
Rob Warden
KDLT News