SILOAM SPRINGS, Ark. (AP) — The Latest on the arrest of a Arkansas college student amid suspicions he planned a mass shooting or bombing (all times local): 4:20 p.m. A college student in Arkansas has been accused of engaging in criminal acts involving explosives after writing that "the maniacal side" of his brain was a "fun little guy" who wanted to inflict mass casualties on society. Prosecutors say 20-year-old Timothy Constantin of Gainesville, Florida, is expected to have a bond hearing Thursday.