He doesn't look Vietnamese.
According to the article:
Pham was ordered to pay $100 in restitution to the Holiday Inn Express at 3808 University Drive for cutting down the business' U.S. flag.
Pham was arrested while cutting down the flag with scissors at 11 a.m. on Monday. Police said he also cut down flags from Burger King on Memorial Parkway at University Drive, The Academy for Academics and Arts on Poplar Avenue, and that charges of criminal mischief for those incidents are likely to follow.