Collan Rex, the 22-year-old former assistant water polo coach at the school, has already pleaded guilty to 144 counts of sexual assault after being accused of molesting at least 23 pupils between 2015 and 2016.
After two weeks of testimony from 17 of the complainants, yesterday State prosecutor Arveena Persad closed her case with one final witness - a teacher and boarding house master who discovered footage of Rex’s abuse, Chris Bossert.
Bossert told the court that in November 2016 he had been approached by one of the pupils in the boarding house who was trying to find a bag of water polo caps that had gone missing.
When the pair went to view the boarding house’s security video, they discovered footage of Rex sexually assaulting a pupil. Bossert said Rex began by placing his legs on the then 14-year-old pupil, then rubbing the pupil’s legs. The footage showed Rex telling the boy something, with the boy leaving and returning in shorts and without a shirt.