British teenager was stabbed 13 times and saw her boyfriend murdered in a bloodbath on a holiday island.

Maddison Wrixon, 18, tried to fight off a crazed knifeman who tied up Cristian Santana Guerra, 21, then stabbed him to death.

Miss Wrixon, who lives on the Canary island of Fuerteventura, underwent emergency surgery which saved her life.