A Malaysian police officer has testified that an airport security video shows one of the women accused of killing the half brother of North Korea's leader apparently practicing on another person before the actual attack

An airport security video shows the half brother of North Korea's leader, apparently unconscious on a gurney and being occasionally given oxygen by attendants as they waited two minutes for an elevator at Kuala Lumpur's international airport

A government chemist has testified he found traces of the banned VX nerve agent on two women being tried in Malaysia on charges of murdering the estranged half brother of North Korea's leader

A chemist has told a Malaysian court he found traces of VX nerve agent and its precursors on the clothing of the Vietnamese suspect in the murder of the half brother of North Korea's leader

A chemist says in a Malaysian court that VX nerve agent was on the clothing of the Vietnamese suspect in Kim murder

Chemist testifies he found a byproduct of VX nerve agent on shirt of Indonesian suspect in Kim Jong Nam's murder

Three researchers based in the U.S., U.K. and Switzerland won the Nobel Prize in Chemistry on Wednesday for developing a way to create detailed images of the molecules that drive life

3 researchers based in the U.S., U.K. and Switzerland have won the Nobel Prize in Chemistry for developments in electron microscopy.

3 researchers win Nobel Prize in Chemistry for developments in electron microscopy

CORRECTS: Researchers based in the UK, US and Switzerland win Nobel Chemistry Prize