Sem, who fell into a canal in Groningen and lay on the bottom, is enormously grateful to his rescuers. ‘They gave me a future’

Sem (18) is sitting on a staircase at the Schuitendiep in Groningen, chatting with his girlfriends Zoë (19) and Merijn (18). They had a few drinks, but not much. Then things go horribly wrong. ,,I lost my balance, but can’t remember anything else.” It is possible that Sem hit his head and became unconscious. Within seconds he is on the bottom.