ST. LOUIS (AP) — A homeless man is charged with dealing synthetic marijuana in downtown St. Louis in November, at a time when around 300 mostly-homeless people became ill from using the drug.

The St. Louis Post-Dispatch reports that 56-year-old John White is charged with delivery or manufacturing an imitation controlled substance.

Police say a surveillance camera showed White in a suspected drug deal outside the New Life Evangelistic Center in early November. The center provides housing and other services for the homeless.

At least two other people have been arrested on suspicion of possessing or distributing synthetic drugs last month in the same area. It isn’t clear if the others will be charged.