Finance worker died after body temperature reached 40C during London half marathon, inquest hears

Kory Russell was taking part in the Royal Parks Half Marathon when he became unwell in Hyde Park - (Supplied by the Russell family)

A finance worker who collapsed and died during his first half marathon had a body temperature over 40C, an inquest has heard.

Kory Russell, 25, died from a cardiac arrest caused by heat exhaustion after running the Royal Parks Half Marathon in London in October.