Students studying abroad are among the first tragic victims of a horror Halloween parade stampede in South Korea to be named .
At least 154 people were crushed to death in Seoul's popular nightlife district of Itaewon on Saturday, with scores more left injured in the aftermath.
The disaster came after thousands of people packed into a narrow alley during the city's famous Halloween festivities, causing a deadly surge. What caused the crowds to surge into the alley has not become clear.
