London Bridge terror attack hero Ignacio Echeverria confirmed as one of the dead
Death toll reaches eight as grieving sisters pay tribute to murdered Spaniard
WATCH: Heroic moment Spanish waiter blocks terrorist from entering Borough Market bar during London terror attacks
The video shows the brave waiter throw himself against the door
Appeal launched after Spaniard who confronted London terrorist goes missing
The Red Cross in Madrid have now launched an appeal to locate him