Man pleads guilty to fatal shooting in Rock Island

ROCK ISLAND Co., Ill. (KWQC) – A Muscatine man pleaded guilty Wednesday to first-degree murder in the shooting death of an 18-year-old in Rock Island.

Court records show Mason A. Davis, 27, was sentenced to 35 years in prison during a trial in Rock Island County District Court. He will receive credit for time already served in the Rock Island County Jail.

After the sentence is completed, he will serve a mandatory three years of supervised release.

At approximately 12:47 a.m. on May 29, 2021, Rock Island Police responded to the 1600 block of 7th Street for a shooting victim and found Keelan J. 18-year-old Sims from Moline found. He was taken to Trinity Rock Island where he succumbed to his injuries.

The next day, police obtained an arrest warrant for Davis. He was arrested in Muscatine.

On June 3, 2022, police arrested a second man, Seth D. Washington, 22, of Moline, was arrested on a charge of first-degree murder in connection with Sims’ death.

He has a preliminary hearing on February 23.

Washington is currently being held at the Rock Island County Jail on $500,000 bail pending his arraignment.(KWQC/Rock Island Police)

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