Knut died on 19 March 2011 after collapsing in his exhibit.
He died of a heart attack after collapsing in an office building, a nephew said.
He died in May 2008, two days after collapsing at home following a stroke.
He died in 2012 after collapsing at his apartment building in Manhattan.
He died after collapsing on a hike in 2009.
The first runner died after collapsing at the finish line.
Mesa died from heart failure at age 31 after collapsing before a race.
Napier died on October 5, 2011, after collapsing the previous day.
However, he died one week later after collapsing in his office.
Jamie, 16, died on Wednesday after collapsing during football practice.
