QUINCY (WGEM) - A Quincy man and woman were arrested Thursday for delivery of a large amount of methamphetamine. At 2:31 p.m. on Thursday, Quincy police, along with the West Central Illinois Task Force, Illinois State Police, and Adams County Sheriff’s Department, executed a search warrant at 1021 North 20th Street. Police said during the search, officers discovered a large quantity of methamphetamine inside the home. Police arrested Katie C.