Former America's Cup sailor Andy Green has said that Andrew Simpson was questioning whether he wanted to continue sailing.
Speaking to BBC Radio 4's Today programme, Green said: "He was questioning whether he wanted to continue sailing, but because his friend Iain Percy was at Artemis he went over there in February and started racing with them as a valuable asset.
"He will be sorely missed by them.
"It's particularly poignant for a British audience that this tragedy has happened because of his history in the Olympics, but I can only hope that Britain goes on to get involved in the America's Cup and win it back, with this very firmly in mind."
More top news
The Duke of Cambridge has condemned the "violent and apparently targeted murder" of the head of a wildlife conservation foundation.
Experts are warning that millions of middle-aged people are putting their health at risk due to a severe lack of exercise.
Teenagers across Wales, Northern Ireland and England are to get their results, with much of the focus on the effect of reforms in England.