Lafleur is charged with the Sept. 25, 2008, death of Wagoner and the serious injury of Deborah Holloway, 57, of Thayer, in a well-marked construction work zone on U.S. Highway 63 north of Thayer. According to a report by Sgt. Ray Rees, of Troop G of the Missouri Highway Patrol, other workers were present in the work zone and there were five warning signs alerting drivers of the work zone.
Wagoner was the flagman on the project and had stopped two vehicles before Lafleur's Freightliner came through. Lafleur failed to reduce his speed in the work zone and was unable to stop. The Freightliner struck the rear of the Holloway vehicle, causing it to overturn on the road. At the same time, Wagoner ran from the road into a ditch. The Freightliner went off the right side of the road and overturned. The trailer Lafleur was towing on the Freightliner fell on Wagoner, killing him.
According to the circuit clerk's office, "A Sentence Assessment Report was ordered by the court and sentencing has been set for Sept. 8, 2009, at 10 a.m."