On this occasion, Dahmer drilled a single hole into Sinthasomphone's skull, through which he injected hydrochloric acid into the frontal lobe. Before Sinthasomphone fell unconscious, Dahmer led the boy into his bedroom, where the body of 31-year-old Tony Hughes, whom Dahmer had killed three days earlier, lay naked on the floor. According to Dahmer, he "believed Sinthasomphone saw this body", yet did not react to seeing the bloated corpse—likely because of the effects of the sleeping pills he had ingested and the hydrochloric acid Dahmer had injected through his skull. Sinthasomphone soon became unconscious, whereupon Dahmer drank several beers while lying alongside him before leaving his apartment to drink at a bar, then purchase more alcohol.