On March 28, 2021, Christopher Smith, 23, and his brother Darius Myles, 28, were found shot to death in their Lawrenceville home on Oxford Hall Drive. Their mother discovered the bodies after she could not reach them. Christopher was found on the living room sofa and Darius in his bed; investigators said both appeared to have been shot while they slept. Four .40-caliber shell casings were recovered at the scene and there were no signs of forced entry.

Attention focused on a longtime friend of the brothers, Walter Debron Hill, who was a frequent visitor to the house and had shared family meals with them. Cell phone data and neighborhood security footage placed a shadowy figure outside the home near the time of the killings. Hill initially told investigators his .40-caliber handgun had been stolen from his car, later admitted owning a similar weapon, and was located in Houston, Texas, where six casings in his vehicle were matched to the four from the scene; a firearms expert concluded all ten casings were fired from the same gun.

Hill was arrested and charged in Gwinnett County. The court records show convictions on two counts each of malice murder, felony murder, aggravated assault, and possession of a firearm during the commission of a felony, with two consecutive life terms without the possibility of parole plus ten years. Did anyone who knew Christopher or Darius notice changes in their friendships or visitors in the weeks before March 28, 2021?