In a statement, the family said: “Brianna was beautiful, witty, and hilarious. Brianna was strong, fearless, and one of a kind.
“The loss of her young life has left a massive hole in our family, and we know that the teachers and her friends who were involved in her life will feel the same.
“We would like to thank everyone for their kind words and support during this extremely difficult time.”
A GoFundMe crowdfunding page set up to help Brianna’s family has passed £70,000 in donations just one day after it was set up.