Corey Griffin, one of the pioneers who helped get the viral ALS Ice Bucket Challenge off the ground, died at the young age of 27 this past weekend after a diving accident.

On Friday night, Griffin was in Nantucket Island for an ALS fundraiser where he helped raise $100,000 for his friend Pete Frates, who suffers from ALS and helped the recent fundraising campaign go viral.

At 2 a.m. in the morning on Saturday, Griffin dived off a building at Straight Wharf into the water and soon drowned. According to the police report, after jumping, Griffin "floated to the surface" but his body "then went under water again not resurfacing."