One person was charged, and three others face investigation in separate shoplifting cases over the last month at the Alma Walmart location. Detective Sgt. Mike Morris caught a suspicious woman while shopping at the store, and after asking Walmart workers to review the security tapes, discovered that 41-year-old Tresa Gadlen of Ithaca didn’t pay for her items. She was arrested and arraigned on a misdemeanor shoplifting charge, while the others face possible felony allegations.