(AP) – A Sedgwick County jury has found a 32-year-old man not guilty of all charges in a 2012 shooting death.

The jury deliberated about four hours Tuesday before finding Dustin Cheever not guilty of charges that included second-degree murder, voluntary manslaughter and aggravated assault in the shooting death of 49-year-old Robert Gammon.

Defense lawyer Steve Mank said jurors told him they only seriously considered the charge of involuntary manslaughter before settling on the not guilty verdict.

Gammon’s brother, Jim Gammon of West Plains, Mo., said he didn’t understand why Cheever wasn’t tried and convicted of first-degree murder.

During the preliminary hearing, the victim’s 23-year-old son, Shelby Gammon, testified that the shooting happened after a friend argued with Cheever about the theft of some gasoline.