An American high school student was high on LSD when he accidentally fell to his death at Capilano Suspension Bridge in June.

A B.C. Corner’s report found that LSD was a contributing factor in the death of Daniel Cho, CBC News reports.

The 17-year-old Californian was in the Lower Mainland as part of a school trip when climbed over a viewing platform railing and fell 30 metres.

The teen and two others apparently took LSD on the bus ride from Seattle to Vancouver.