the teenager , who can not be named for legal reasons , had to be put down because of the abuse it suffered .
the teenager , who can not be named for legal reasons he was ` accidentally ' high on ` white rhino ' - super-strength cannabis - and was being egged on by friends when the abuse occurred .
he claimed he was ` accidentally ' high on ` white rhino ' - super-strength cannabis - and was being egged on .
inspectors said she suffered a lot in her short life .