Omaha Doctor Convicted of Killing Sioux Falls Woman in 2023 Crash

A Nebraska surgeon is facing 20 years in prison after a jury in Omaha found him guilty of causing a 2023 car accident that killed a Sioux Falls woman.

Dr. Mark Carlson was convicted of manslaughter in a Douglas County courtroom for his role in the September 1, 2023 crash that took the life of 22-year-old Anna Bosma.

According to court documents, Carlson was racing another vehicle on Dodge Street in Omaha when his Mercedes E63 AMG left the roadway and struck a light pole. The vehicle then veered across five lanes of traffic and collided with the front end of Bosma’s Chevy Cruze.

An investigation determined that Carlson's car was traveling in excess of 100 miles per hour at the time of the incident.

Bosma was pronounced dead at the scene.

During the trial, Carlson’s defense team argued that he had suffered a medical event while driving, and that the vehicle’s lane assist technology had kept his vehicle on the roadway.

Prosecutors introduced into evidence a review of crash data which showed that the lane assist technology was disabled while Carlson’s vehicle was barreling down the road,

A sentencing hearing is scheduled for May. The maximum sentence for manslaughter, a Class IIA felony in Nebraska, is 20 years in prison.

Bosma had graduated with honors from South Dakota State University in May 2023, according to her obituary, and was enrolled in the University of South Dakota’s occupational therapy doctorate program at the time of her death.

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Bosma was born in Yankton in 2001 and lived in Vermillion before moving to Sioux Falls in 2004.

She attended Mark Twain Elementary School, Patrick Henry Middle School, and Lincoln High School in Sioux Falls. In May of 2023, she graduated cum laude from South Dakota University with a degree in Exercise Science. In July of that year, she enrolled in the Occupational Therapy Doctorate program at the University of South Dakota.