A Michigan City Police Department officer who was found dead in his car over the weekend died of a single self-inflicted gunshot wound.

• RELATED: Michigan City police officer found dead inside vehicle, Aug. 3, 2015

Robert Grant, 37, committed suicide Saturday, Aug. 1, just a few hours before his body was found in his car along C.R. 300 North near C.R. 400 west, according to the LaPorte County Sheriff’s Office, as reported by the South Bend Tribune.

Grant was arrested July 28, at the Michigan City Police Department on charges of possessing a legend drug without a prescription and official misconduct.

• RELATED: Michigan City police officer arrested, charged with drug possession, July 30, 2015

LaPorte County Sheriff’s deputies began looking for Grant after they were contacted by a local attorney who told them Grant’s family was concerned that they hadn’t heard from him.

Read more about Grant and the investigation in the full story from the South Bend Tribune.