Kidnappers don’t always target humans. On Feb. 8, 1983, a group of men abducted the Irish racehorse Shergar, winner of the 1981 Epsom Derby.

A local radio station received a ransom demand for £1.5 million, but the horse was never recovered, and to this day his fate is still unknown.

03/04/2018 UPDATE: In 2008, Telegraph reporter Andrew Alderson found the answer. (Thanks, Paul.)