U.S. Immigration and Customs Enforcement’s (ICE) Enforcement and Removal Operations (ERO) officers removed a citizen of Taiwan who was sentenced after pleading guilty to one count of being an alien in possession of ammunition, following a Homeland Security Investigations Philadelphia, investigation with the assistance of the Upper Darby Police Department and the Delaware County District Attorney’s Office.
“Returning individuals like Mr. Sun continues to be among ICE’s highest priorities,” said Simona L. Flores, field office director for ERO Philadelphia. “ICE continues our commitment to making our communities safer by removing threats to our public safety.”
An Tso Sun, 18, also known as “Edward Sun,” a Taiwanese exchange student, came to the United States in Aug. 26, 2017, on an F-1 visa to be a student at a high school in Upper Darby, Pennsylvania. While attending school, he resided with a host family in Upper Darby. Beginning in October 2017, Sun visited a Philadelphia shooting range on multiple occasions, where he fired a variety of firearms, including semiautomatic rifles and shotguns. Over the next few months, Sun purchased hundreds of rounds of ammunition from online vendors and directed that they be shipped to his host family address. In January 2018, Sun purchased pistol components from multiple online vendors and assembled them to create a functioning homemade pistol.