* Police release video, photos of suspect from surveillance cameras * No motive has been determined * Attack was planned, police say NEW YORK, Dec 5 (Reuters) - New York police were searching on Thursday for the man who shot dead UnitedHealth ( UNH ) executive Brian Thompson in a brazen attack outside a Midtown Manhattan hotel and was last...

NEW YORK (Reuters) - New York police were searching on Thursday for the man who shot dead UnitedHealth ( UNH ) executive Brian Thompson in a brazen attack outside a Midtown Manhattan hotel and was last seen fleeing into Central Park. Thompson, the CEO of UnitedHealth's ( UNH ) insurance unit, was shot from behind on Wednesday morning in what...

CHICAGO/MONTREAL (Reuters) - A global blueprint for modern air travel struck 80 years ago this week faces fresh tests managing change and rising air traffic in the developing world, a senior official at the UN's aviation agency told Reuters. On Thursday, the UN's International Civil Aviation Organization (ICAO) is bringing together regulators and industry executives including from Boeing ( BA...

* UN aviation agency celebrating 80th anniversary in Chicago * Transportation Secretary Buttigieg says agency's work critical but unglamorous * Delegates hold special session to discuss climate, safety issues By David Shepardson and Allison Lampert CHICAGO/MONTREAL, Dec 5 (Reuters) - A global blueprint for modern air travel struck 80 years ago this week faces fresh tests managing change and rising...