Names Released in Minnehaha County Fatal Crash

What:    Two vehicle fatal crash
Where:  Interstate 29, mile marker 88, four miles north of Sioux Falls, SD
When:   7:57 p.m., Thursday, March 12, 2026

Vehicle 1: 2001 Chevrolet Monte Carlo
Driver 1: James Alan Knapp, 56-year-old male from Aberdeen, SD, fatal injuries
Seat belt Used: No 

Vehicle 2: 2025 Peterbilt Semi
Driver 2: Rambo Saw, 35-year-old male from St. Paul, MN, no injuries
Seat belt Used: Yes 


Minnehaha County, S.D. – An Aberdeen man died Thursday in a two-vehicle crash on I-29, four miles north of Sioux Falls, SD.

Preliminary crash information indicates James Alan Knapp, the driver of a 2001 Chevrolet Monte Carlo, was traveling south on Interstate 29 near mile marker 88. The vehicle had come to a complete stop in the driving lane and was struck from behind by an oncoming Peterbilt semi driven by Rambo Saw. The Monte Carlo came to rest in the west ditch.

Knapp died from injuries sustained in the crash. Saw was not injured.

The South Dakota Highway Patrol is investigating the crash. All information released so far is preliminary.

The Highway Patrol is an agency of the South Dakota Department of Public Safety.

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Note: Records of state-reportable crashes are now available at http://www.safesd.gov/ . Records should be available about 10 days after the investigation is complete.