an tso sun

In this Nov. 30, 2016 file photo, artwork and signatures cover a fence around the Pulse nightclub, scene of a mass shooting, in Orlando, Fla. Jurors in the federal trial of Noor Salman, the Pulse nightclub gunman's widow, have gotten a look inside his Florida condo through crime scene photos taken as FBI agents searched the home. They also saw some of her husband Omar Mateen's web browsing history Tuesday, March 20, 2018, including beheading videos created by the Islamic State group Mateen had pledged allegiance to. Salman was accused of aiding and abetting her husband in the 2016 attack that left 49 people dead. (AP Photo/John Raoux)

This undated photo provided by the Upper Darby Police Department in Upper Darby, Pa., shows An Tso Sun, a Taiwanese exchange student charged with making terroristic threats after he was arrested for threatening a shooting at his high school, Monsignor Bonner and Archbishop Prendergast Catholic High School in Drexel Hill, Pa. Police said Wednesday, March 28, 2018, that Sun had researched how to buy weapons, and that a military-style ballistic vest, ammunition clip pouches, a high-powered crossbow and live ammunition were found in his bedroom in Lansdowne, Pa. Sun is in custody in Delaware County Prison in Thornton, Pa., in lieu of $100,000 bail. (Upper Darby Police Department via AP)