An American Airlines pilot was arrested for triple homicide at a Kentucky airport while passengers waited to board their flight.
Some travellers described it as "something you would totally see in a movie".
"It was very tense," another passenger added. "You could tell the employees knew something was going on."
Christian Richard Martin is accused of killing three people in November 2015.
In a statement, American Airlines said it was "deeply saddened" to learn about the allegations against Martin, who has been a pilot for PSA Airlines since January 2018.
At least 14 killed in explosion at weapons depot in Syria
US hits five Iranian oil tankers after attack on Navy ships
UK gives air traffic provider a week to probe outage that halted flights
Serbia's President Vucic dissolves parliament, calls snap elections
With large crowds attending, Norway lays King Harald to rest
Jordan intercepts 18 Iranian ballistic missiles
Air traffic control issue disrupts flights at major UK airports
At least 73 injured after Houthi rebels attack Saudi civilian and energy facilities
