New details have emerged in the arrests of three men in connection with a stabbing last week in Ames.


Tyrrell R. Scheuermann, 22, of Story City, was charged with first-degree robbery. Gustaf R. Carlson, 45, of Ames, was charged with second-degree robbery and first-degree harassment, and Jason R. Darland, 22, of Slater, was charged with second-degree robbery.


The victim has been identified as a 43-year-old man from Ellsworth. He was released from the hospital on Thursday.


Ames police Cmdr. Jason Tuttle said it is believed that incident stemmed from the victim owing Carlson money.


“Gus (Carlson) brought these other two guys to this address on Grand (Avenue) and demanded money from the man,” he said. “That is what lead to the assault.”


Jason said the victim ran from the 1100 block of Grand Avenue after being confronted and was picked up by his girlfriend in a car, near Bandshell Park.


According to police, when the victim got into his girlfriend’s car, Scheuermann jumped into the car and stabbed the victim in the abdomen before fleeing the scene.


Scheuermann jumping into the car to commit the assault is the reason he is charged with first-degree robbery.


“Gustaf was the main ring leader,” Tuttle said. “He brought the other two guys over and it escalated from there.”


Scheuermann and Carlson are scheduled to appear in court on April 23, and Garland is scheduled to appear in court on April 24.


According to the original news release, Ames police officers were called to the 1100 block of Grand Avenue just before 7 p.m. Wednesday on a report of a fight in progress. When they arrived, officers couldn’t find anyone who had been involved in a fight.


A short time later, officers were called to the hospital because a man was being treated there for a stab wound. The man was brought there in a private vehicle, police said.


The investigation led to the arrest of the three defendants on Friday.


Carlson, Scheuermann and Darland are each being held in the Story County Jail on $25,000 bond.