Police officers arrest a demonstrator on August 19, 2014 in Ferguson, Missouri. Photo: Joe Raedle/Getty
Wed, Aug 20, 2014 5:24 PM EDT

A police officer that threatened to kill unarmed protesters in Ferguson Tuesday night has been removed from duty after ACLU of Missouri sent a letter to Colonel Ronald Replogle, who serves as superintendent for Missouri's State Highway Patrol.

The officer was caught on livestream yelling "I will fucking kill you" to protesters in Ferguson. When asked to identify himself, the officer refused and said "go fuck yourself," instead. 

ACLU of Missouri's letter stated:

[T]his officer's conduct--from pointing a weapon, to threatening to kill, to responding with profanity to a request for identity--was from start to finish wholly unacceptable. Such behavior serves to heighten, not reduce, tension.

ACLU-Missouri tweeted that the officer has been removed from duty Wednesday: