Four friends who rowed the Atlantic in memory of one of their brothers have raised more than half a million pounds for a suicide prevention charity. Harry Wentworth-Stanley, Sam Greenly, Toby Fenwicke-Clennell, and Rory Buchanan battled gruelling physical conditions to complete the 3,000-mile Talisker Whisky Atlantic Challenge in 39 days, four hours and 14 minutes.