Together with his elder brother Alberto he competed in the 3 m springboard and 10 m platform at the 1948, 1952 and 1956 Olympics and won one gold, one silver and two bronze medals, finishing fourth in the two remaining competitions.

After retiring from competitions Capilla descended into poverty, chain smoking and alcoholism, eventually losing his family and home.

He recovered owing to religion and later earned a degree in theology.

He died the next year in 2010 as a result of cardiac arrest, at the age of 81.

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