Two men face state and federal charges for allegedly inserting ATM skimmers at banks and credit unions in Rhode Island and other areas along the East Coast. In an affidavit unsealed Monday in the federal court system, a Homeland Security agent says there’s evidence that ties Mario DeMarco, aka David Adamec, and Stefano Garioli, aka Leon Vutkus, to skimming incidents at several banks over a two-year period.