Another arrest has been made following a 10-month investigation into the sale of heroin in Horseheads.
44-year-old Keough Hallock is accused of selling heroin throughout the Chemung County township in October of 2016. Her arrest follows last week’s arrest of 43-year-old Thomas Margeson. Both are charged with criminal sale of a controlled substance.
Margeson is a lieutenant with the Corning Fire Department and an assistant fire chief with the Horseheads Fire Department.