CANTON, S.D. — A South Dakota jury on Tuesday convicted a man of second-degree murder and other charges in the death of the 2-year-old son of Minnesota Vikings running back Adrian Peterson.

The Lincoln County jury deliberated more than five hours before finding Joseph Patterson, 29, guilty of second-degree murder, first-degree manslaughter and aggravated battery, the Argus Leader reported. The deliberations followed two weeks of testimony about the October 2013 death of Tyrese Robert Ruffin, the son of Patterson’s girlfriend and Peterson.

Authorities alleged that Patterson assaulted Tyrese while the two were alone in a Sioux Falls apartment. An autopsy concluded that the boy’s head sustained four blows, causing his brain to bleed, and doctors determined that the injuries could not have been accidental.

Patterson’s defense maintained during the trial that Tyrese choked on a fruit snack. A doctor who testified for the defense said autopsy photos indicated injuries consistent with a child being given CPR after choking.