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Courtney Petersen, a paralyzed Marine Corps veteran and marathoner, was killed after being struck by a truck while on her handcycle.

The fatal incident occurred at a dangerous intersection on Iowa's High Trestle Trail, prompting calls for safety improvements.

A safety study for the corridor, including the intersection where Petersen died, was already underway before the accident.

Courtney Petersen's husband was watching her location.

The moving icon marking her cycling spot stopped at an infamous intersection along Iowa’s famed High Trestle Trail .

“I was praying in my mind that she just got a flat tire or her chain popped off,” Brad Petersen said in an interview with the Des Moines Register.

He tried calling. No answer. Cell phone service does cut out along th

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