The 18-year-old had his own website on which he posted pictures of himself drinking.
The youngster described by his former headmaster as being of “exceptional promise”, had only been at the school of business and economics at Exeter University for two months.
Shocked fellow students were told of Gavin’s death in an e-mail circulated by the university’s head of undergraduate studies yesterday.
Police have described the death as a “terrible tragedy” but have confirmed they are not treating it as suspicious.
The teenager’s parents Ian, a property developer and Susan, a former dental nurse, who also have another younger son Darren, travelled to the Devon city to formally identify their son’s body.