Sioux Falls, SD (March 12, 2026) – Authorities have identified 56-year-old James Knapp of Aberdeen as the man who died in a two-vehicle crash on Interstate 29 near Sioux Falls.
Incident Details: According to the South Dakota Department of Safety, the crash occurred on March 12, 2026, near mile marker 88. Investigators reported that Knapp was driving a 2001 Chevrolet Monte Carlo southbound when his vehicle came to a complete stop in the driving lane.
A semi-truck traveling behind him, driven by a 35-year-old man from St. Paul, Minnesota, was unable to avoid the stopped vehicle and struck it from behind. The Monte Carlo was pushed into the west ditch, and Knapp died from his injuries. The semi-truck driver was not injured.
Investigation: Authorities are continuing to investigate the circumstances surrounding the crash. Because the collision involved a stationary vehicle in an active travel lane and a commercial semi-truck, investigators will examine multiple contributing factors.
Key areas of focus will likely include:
- Reason for the stopped vehicle—determining why Knapp’s vehicle came to a complete stop in the driving lane of the interstate.
- Driver awareness and reaction time—evaluating whether the semi-truck driver had sufficient time and distance to perceive and react to the stopped vehicle.
- Vehicle speed and braking evidence—reviewing skid marks, impact damage, and electronic data from the semi-truck.
- Commercial vehicle operation—examining the semi driver’s logs, training, and compliance with federal trucking safety regulations.
- Roadway and visibility conditions—assessing lighting, traffic flow, and whether any obstructions limited visibility.
The findings from this investigation will help determine whether any traffic violations or mechanical issues contributed to the crash.
Legal Considerations: Rear-end collisions involving semi-trucks can present complex legal questions, particularly when a vehicle is stopped in an active travel lane. Commercial truck drivers generally must maintain a safe following distance and remain attentive to roadway conditions, but liability may depend on why the lead vehicle stopped and whether it created an unexpected hazard.
If investigators determine that the semi-truck driver failed to react appropriately or was following too closely, James Knapp’s surviving family members may have grounds to pursue a wrongful death claim. However, if the vehicle was stopped without warning in a travel lane, fault may be shared or disputed, making the outcome highly dependent on the specific facts uncovered during the investigation.
My thoughts are with the family and loved ones of James Knapp as they grieve this tragic loss, and I hope they are surrounded by support during this difficult time.
Source: Keloland Local News