ALS ice bucket challenge co-founder Corey Griffin has drowned in a diving tragedy only weeks after seeing the challenge go viral across the web.
Griffin, 27, died after leaping from the roof of a bar in the Massachusetts town of Nantucket, last weekend.
According to the Boston Globe, the financier dived from the top of a bar called Juice Guys into the water, before surfacing once and then disappearing for good.
In the weeks before his untimely death, Griffin had seen the ice bucket challenge taken up by global figures, including Microsoft founder Bill Gates, Facebook founder Mark Zuckerberg and a host of celebrities including Oprah Winfrey, Lady Gaga and Justin Bieber.
The challenge has so far raised around $23m (£14m )in aid of Pete Frates