Earlier that year the same group killed 12 people with sarin nerve gas. Iraq used cyanide in its attack on the Kurdish village of Halabja in 1988. Five thousand people died and many were ...

But the family have long contested that when the River Thames burst its banks and flooded a nearby old landfill, toxic hydrogen cyanide gas was released, causing their son's death. Flooding does ...

Aiming carefully, he fired two pellets into Bandera’s face. The capsules exploded on impact, releasing a cloud of cyanide gas. Bandera gasped the fumes and fell unconscious. He died, without ...

Victims of cyanide are effectively choked by the toxic gas. Symptoms include headaches, dizziness, confusion, vomiting and convulsions. At high concentrations it can cause rapid death.

It can occur as a colourless gas or liquid or in crystal form. People can be exposed to cyanide by breathing it in, absorbing it through the skin, or eating food or liquids that contain it.

Germany used a cyanide-based gas to massacre Jewish civilians in concentration camps. Lesson learned: While it's hard to get an evil genie back in its bottle, the threat of retaliation generally ...