Ricin immunogenic in mice, rabbits, and humans. It has completed two successful clinical trials. Ricin has been involved in a number of incidents. In 1978, the Bulgarian dissident Georgi Markov was assassinated by Bulgarian secret police who surreptitiously shot him on a London street with a modified umbrella using compressed gas to fire a tiny pellet contaminated with ricin into his leg. He died in a hospital a few days later and his body was passed to a special poison branch of the British Ministry of Defence (MOD) that discovered the pellet during an autopsy. The prime suspects were the Bulgarian
Hielanman's Umbrella the bridge were also upgraded. In 2001, a new entrance to the burgeoning Arches nightclub and restaurant complex was added under the bridge which has led to the level of pedestrian footfall increasing markedly. Hielanman's Umbrella The Hielanman's Umbrella () is a landmark in the centre of Glasgow, Scotland. It is the local Glaswegian nickname for the glass walled railway bridge which carries the platforms of Glasgow Central station across Argyle Street. Due to the forced displacement of people during the second phase of the Highland clearances in the 19th century, 30,000 highlanders who spoke Scottish Gaelic but not English