The 1990s were witness to some of the World's most devastating disasters. As well as some of the high profile cases such as the death of Princess Diana and Gianni Versace, we turn our attention to some lesser known tragedies such as the Order of the Solar Temple suicides and the sinking of the MS Estonia in the Baltic Sea. The '90s Greatest Tragedies' shines a light on some of the decade's darkest moments in order to illuminate some of the important lessons learnt.