David Brocksom, 46, of Kenosha, Wisconsin.

A Kenosha man convicted of murdering his ex-wife at her Gurnee home in 2015 was sentenced to 90 years in prison, the Lake County State’s Attorney’s Office said.

David Brocksom, 48, is required to serve the entire sentence imposed by Lake County Associate Judge George Strickland before becoming eligible for mandatory supervised release.

Brocksom received 1,512 days credit toward the prison sentence from the time he has already served in the Lake County Jail.

The sentencing hearing Monday came after a Lake County jury found Brocksom guilty in 2018 of first-degree murder of his ex-wife, Beata Brocksom.

Assistant Lake County State’s Attorney’s Jason Humke and John Brown said at trial that Brocksom took his two children to a resort in the Wisconsin Dells, but left the resort in the middle of the night to drive to Beata Brocksom’s home on September 27, 2015.

Prosecutors said at trial that David Brocksom planned to sneak in to Beata’s home around 4 a.m. and kill the woman. Prosecutors added that David Brocksom then planned to cover up the murder by making her death appear to be a suicide, according to the Lake County State’s Attorney’s Office.

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However, Beata Brocksom woke up after David Brocksom entered her home and the two struggled for control of the gun, prosecutors said.

During that struggle, Beata Brocksom was shot in the throat but she managed to crawl outside through an open window. She was found dead several hours later in nearby bushes.

Brocksom left the home and drove back to his parents’ house in Kenosha, prosecutors said, adding that he arranged to have his children picked up from the Wisconsin Dells hotel before turning himself in to Gurnee police.

“This has been a long, difficult process for everyone involved. Hopefully, this prison sentence helps bring some closure to the family of Beata Brocksom,” Lake County State’s Attorney Michael Nerheim said.