Shavarsh Karapetyan: The swimmer who sacrificed himself to save the lives of 20 people
Shavarsh Karapetyan: From a world champion to a real-life superhero.
In 1976, Shavarsh Karapetyan, then 23, saved 20 people from drowning after a trolleybus crashed into the freezing waters of Yerevan Lake.
Karapetyan was a…