SIOUX CITY -- Court documents say a 22-year-old man charged with attempted murder wanted to retaliate against his 28-year-old victim when he fired multiple shots at the man as he drove away.
Police arrested Isaac "Gus" McDonald shortly before 4:30 p.m. Monday, just a few hours after releasing his photo to the public. McDonald is being held at the Woodbury County Jail in lieu of $100,000 bond. He is scheduled to appear in court on Aug. 24. John Mercure, the man McDonald allegedly shot, remains in critical condition.
According to a criminal complaint and affidavit filed in Woodbury County District Court, McDonald, who was armed with a handgun, was a passenger in a car being driven in the Greenville neighborhood on Aug. 1. He was looking to retaliate against Mercure, also known as Miami, but the documents don't disclose a motive.
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After the driver parked the car, which had two passengers besides McDonald, at Third and Logan streets, McDonald allegedly got out and started walking westbound toward a house in the 300 block of Alice Street, where he found Mercure and another man in a parked car.
According to the documents, McDonald fired multiple shots at Mercure as he drove away. Mercure, who was shot in the left side of his head, crashed the car he was driving into a tree. McDonald allegedly fled the scene.
Officers found four shell casings in the grass and two bullets in the car Mercure was driving. Two other bullets struck a neighboring home and garage.
Sioux City Police Lt. Chris Groves said Tuesday the investigation is ongoing.
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