The half-brother of North Korean dictator Kim Jong Un was assassinated using the deadliest nerve agent known to man.
VX is a chemical so potent that the United Nations classes it as a weapon of mass destruction.
Malaysian police revealed Friday that Kim Jong Nam's body contained traces of VX, a colorless, odorless, tasteless liquid that's deadly in microscopic amounts.
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Authorities allege he was assassinated by two women who wiped the substance on his face while he waited to board a flight at Kuala Lumpur airport on Feb. 13.