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Man charged with first-degree murder after shooting outside Iowa convenience store

Deputies responding to the scene found a 45-year-old man dead in the parking lot.

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Authorities say a fight preceded a deadly shooting Sunday evening outside a Casey’s convenience store in a small Iowa town.According to court documents, Michael Joseph Lee and David Michael Dyke had a verbal altercation inside the store, located at 203 Main Street E. in Fremont, around 5:20 p.m. Sunday.”Dyke exited the store and sat in his vehicle, which was parked in front of the store,” according to a criminal complaint against Lee, who has been charged with first-degree murder. “A short time later, Lee exited the store and reengaged Dyke, who was still sitting in his car. Dyke exited his vehicle and a verbal and physical altercation occurred between the two. Lee fired several shots during the altercation, striking Dyke at least once, causing his death.”Lee, 45, of Fremont, called 911, “stating he shot someone,” court documents say. Responding deputies with the Mahaska County Sheriff’s Office found Dyke, 45, of Rose Hill, dead on the scene. It did not take long for law enforcement to find Lee.”We located him, I think, approximately 18 minutes after the shooting, ” said Sheriff Russell Van Renterghem, Mahaska County.”In an interview with law enforcement, Lee said Dyke was on top of him when he reached into his right coat pocket and fired several shots from a .38 caliber revolver, striking Dyke, causing his death,” the criminal complaint said. “The evidence, crime scene processing, and witnesses contradict this account. Witnesses reported hearing multiple gunshots and then seeing Dyke on the ground.”Evidence from the scene shows at least one round from Lee’s gun entered the Casey’s store. Authorities recovered the .38-caliber revolver from Lee’s home while executing a search warrant.The shooting remains under investigation.Russell Moore has lived in Fremont for more than five decades.He can’t remember the last time there was a murder in Fremont. “It’s very unusual in this small town. There’s not much of the town left. It’s a quiet little town, “Moore said. Make sure you can always see the latest news, weather, sports and more from KETV NewsWatch 7 on Google Search.NAVIGATE: Home | Weather | Local News | National | Sports | Newscasts on demand |

Authorities say a fight preceded a deadly shooting Sunday evening outside a Casey’s convenience store in a small Iowa town.

According to court documents, Michael Joseph Lee and David Michael Dyke had a verbal altercation inside the store, located at 203 Main Street E. in Fremont, around 5:20 p.m. Sunday.

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“Dyke exited the store and sat in his vehicle, which was parked in front of the store,” according to a criminal complaint against Lee, who has been charged with first-degree murder. “A short time later, Lee exited the store and reengaged Dyke, who was still sitting in his car. Dyke exited his vehicle and a verbal and physical altercation occurred between the two. Lee fired several shots during the altercation, striking Dyke at least once, causing his death.”

Lee, 45, of Fremont, called 911, “stating he shot someone,” court documents say.

Responding deputies with the Mahaska County Sheriff’s Office found Dyke, 45, of Rose Hill, dead on the scene.

It did not take long for law enforcement to find Lee.

“We located him, I think, approximately 18 minutes after the shooting, ” said Sheriff Russell Van Renterghem, Mahaska County.

“In an interview with law enforcement, Lee said Dyke was on top of him when he reached into his right coat pocket and fired several shots from a .38 caliber revolver, striking Dyke, causing his death,” the criminal complaint said. “The evidence, crime scene processing, and witnesses contradict this account. Witnesses reported hearing multiple gunshots and then seeing Dyke on the ground.”

Evidence from the scene shows at least one round from Lee’s gun entered the Casey’s store. Authorities recovered the .38-caliber revolver from Lee’s home while executing a search warrant.

The shooting remains under investigation.

Russell Moore has lived in Fremont for more than five decades.

He can’t remember the last time there was a murder in Fremont.

“It’s very unusual in this small town. There’s not much of the town left. It’s a quiet little town, “Moore said.

Michael Joseph Lee, 45, has been charged with first-degree murder in the shooting death of David Michael Dyke, 45, on Feb. 1, 2026.

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Michael Joseph Lee, 45, has been charged with first-degree murder in the shooting death of David Michael Dyke, 45, on Feb. 1, 2026.

Make sure you can always see the latest news, weather, sports and more from KETV NewsWatch 7 on Google Search.

NAVIGATE: Home | Weather | Local News | National | Sports | Newscasts on demand |

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