Gilyard, Adgers and another man allegedly went to Tony Lyles' home at 57th and Bales on a marijuana deal (5 pounds of weed for $5,000). But when the buyer arrived, the three allegedly robbed him of $500.
Lyles, Adgers and the victim of the robbery left the house to go to the robbery victim's car. Court records say a passenger in the vehicle shot Adgers.
Gilyard, 22, is also facing charges of first-degree murder and two counts of armed criminal action.
In April, Lyles, 19, was charged with second-degree murder and armed criminal action.