The Spanish policeman who shot dead four terrorists as they attacked innocent civilians with knives and an axe, is a former special forces soldier who was working overtime.
The married father, who has not been named for security reasons, served with the Legion - an elite infantry unit of the Spanish Army.
He was highly trained in firearms and marksmanship.
After leaving the armed forces he joined the Catalan police force Mossos d'Esquadra, where he had hoped for a more stable and less dangerous life.
The officer was not meant to be on duty on Friday, but agreed to work overtime, to beef up security, after the attacks earlier that day in Barcelona.