At approximately 07:00 hours this morning, Marple Police with the assistance of Homeland Security Investigations (HSI) and the Philadelphia Police Department, served an arrest warrant on Hanh V. Nguyen, in reference to a firearm purchase Nguyen attempted to make in Marple Township, in June of 2020, for two (2) firearms. Nguyen's firearm purchase was declined, and investigation revealed it was due to Nguyen being a convicted felon.