Henry Lo, a 20-year-old junior at Williams, died on a hiking trip near Frutigen, Switzerland, on June 6. A student in the Williams-Exeter Programme at Oxford University, he was swept off a 100-meter cliff by an avalanche of snow, ice and rocks. According to Bern police, the avalanche appeared to have been caused by a person skiing above where Lo and eight other Williams and Exeter students were hiking.

A resident of Franklin Square, N.Y., Lo was a double major in mathematics and religion. Fellow students in the Programme wrote, “You made the most of your time here at Oxford: football, kickboxing, working out, wine-tasting, truly loving your academic work. … This list only scratches the surface. … You made such a huge impression on all of us in less than a year. … We can’t believe you’ve been taken from us.”