WEST PALM BEACH, Fla. (CBS12) – The death of a college student who was found at the bottom of a swimming pool at Keiser University has been ruled an accident. According to the West Palm Beach Police Department (WPBPD), two students found the 20-year-old, who was identified as Ruben Tronhus, in the pool, at 2331 Northwood University Drive, around noon on Sunday and called for help.