The family of a man who died after a confrontation with sheriff's deputies in Georgia says they want the law officers involved in his death to be held accountable.

Mary Ann Sherman said Thursday that the repeated use of the deputy's stun gun and the pressure applied to Chase Sherman's torso with their knees lead to her son's death on Nov. 20. The Coweta Medical Examiner's office ruled Sherman's death as a homicide.

During a 911 call, the mother told a dispatcher her son was using the synthetic drug known as "spice."

The Georgia Bureau of Investigation says a Coweta County sheriff's deputy used a stun gun on Chase Sherman to restrain him. Officials say Sherman continually resisted and went into medical distress. He was pronounced dead at a hospital.