Trial begins for Wood Co. man accused in fatal love triangle - WAOW - Newsline 9, Wausau News, Weather, Sports

Trial begins for Wood Co. man accused in fatal love triangle

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Mark Kusters Mark Kusters
Trina Kusters takes the stand in the trial of her husband Mark Kusters. Trina Kusters takes the stand in the trial of her husband Mark Kusters.
WISCONSIN RAPIDS, Wis. (WAOW) -

The trial for a Wood County man accused of murder in a fatal love triangle begins.

Prosecutors say 59-year-old Mark Kuster's shot and killed 42-year-old Richard Flynn last year, after finding out Flynn was having an affair with his wife.

The state claims it's a cut and dry case, while the defense argued the shooting, which happened at Kuster's home, was self defense.

"He said he was going to kill him, he went and got his shot gun and he did kill him. He went outside, Mr. Flynn was outside, he shot him, he shot him dead with a shotgun," said State Attorney Craig Lambert.

"I believe when this case goes to the jury, you'll find that Mark acted perfectly well in self defense. He was protecting his property when the person had entered the porch of that home and in such he was perfectly justified in what he did," said Defense Attorney Gary Kryshak.

According to the defense, Kuster's was planning to file for divorce but his wife later testified she didn't know.

Stay with Newsline 9 for continuing coverage from the courtroom.

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The trial for a 59-year-old Wood County man accused of fatally shooting a man having an affair with his wife starts Monday, according to online court records.

Mark Kusters is jailed on $1 million bond following the Sept. 15, 2016 shooting that killed 42-year-old Richard Flynn at a home on 78th Street South in Grand Rapids, according to the criminal complaint.

Kusters waived his right to a timely preliminary hearing during a brief court appearance earlier this month, according to online court records.

Kusters' wife, Trina Kusters, told police her husband shot Flynn because he was angry Flynn was having an affair with her, the complaint said.

RELATED: Court document: Affair led Grand Rapids husband to fatally shoot man

RELATED: Preliminary hearing set for Wood Co. man in fatal shooting

Trina Kusters said she had been out drinking with Flynn and a female neighbor that night. She said when she got home at about 1 a.m., she saw Flynn looking in the home's windows and her husband saw him too, the document said.

"Trina stated Mark said, 'I'm gonna (expletive) kill him' and went to retrieve his shotgun," court records said.

Mrs. Kusters said her husband confronted Flynn outside, told him he was going to kill him and Flynn responded "he didn't care because he wanted his wife," the document said.

The husband then fired one shot, Mrs. Kusters told police.

Flynn died about 2:30 a.m. after being taken to a Marshfield hospital, the document said.

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