An Aurora man was found guilty of beating his 84-year-old grandfather to death during an argument that started over some shrimp.

A jury found Jason Vanbommel, 34, guilty of reckless manslaughter and first-degree assault of an at-risk adult, among other charges.

Investigators say on Dec. 29, 2015, Vanbommel’s grandmother was preparing dinner when he starting arguing with her over the shrimp she planned to prepare.

Frans Vanbommel, 84, interceded and told Jason Vanbommel to be respectful of his grandmother. Jason Vanbommel flew into a rage, throwing things and yelling profanities. When Frans Vanbommel tried to use the phone to call 911, Jason Vanbommel began punching his grandfather in the head with full-strength blows. When Frans Vanbommel fell to the floor, Jason Vanbommel kicked him in the torso, fracturing his ribs.

Jason Vanbommel left the home; police were called and responded to the scene.

The condition of Frans Vanbommel deteriorated. He was admitted to a hospital and died Jan. 6.

The presumptive sentencing range for a Class 2 felony is 16-48 years. At a hearing Tuesday, Judge Phillip Douglass determined Jason Vanbommel is a habitual criminal, rendering him eligible for enhanced penalties. 

Sentencing is scheduled for June 16.