The world is still reeling from last week's terrorist attack in Barcelona, but no one is feeling the pain more than the people of Spain.
Since the car attack and the dramatic manhunt last week, survivors have shared their stories and tributes have poured in from around the world. More than 100 people were injured in the attacks, and so far 15 people have died.
As the Spanish remember the victims, one athlete's tribute to them is going viral today. Professional swimmer Fernando Alvarez from Cadiz, Spain was competing this week in the Masters World Championship swim meet in Budapest, Hungary.
Alvarez says he repeatedly asked International Swimming Federation officials to take a moment of silence before his final race on Saturday, but they refused because they "could not lose a minute."
But Alvarez wouldn't let their decision stop him from paying his respects, and his tribute later that day has already been watched millions of times.