Synchronised, the joint favourite, was one of two mounts to die in the Grand National yesterday, prompting a fresh round of demands from animal rights protesters for the steeplechase to be abolished.
Ridden by veteran jockey Tony McCoy, the nine-year-old winner of last month's Cheltenham Gold Cup earlier escaped his rider, running most of the way around the course in a state of agitation before being brought under control for the start of the race proper.
The thoroughbred steeplechaser fell at Becher's Brook.He carried on riderless until he stopped after the Canal Turn where he was found to have an untreatable fracture on a hind leg and was put down.
The other mount who died - According to Pete - fractured a foreleg also after falling at Becher's. Two other horses, Killyglen and Weird Al, were receiving veterinary treatment yesterday after falls.
The race was won by Neptune Collonges, ridden by Daryl Jacob in an almost impossibly close finish millimetres ahead of Sunnyhill Boy. Katie Walsh on Seabass came third in the contest, becoming the highest placed female jockey in the history of the race.