Chicago releases dash-cam video of officer shooting 17-year-old [WARNING: GRAPHIC]



***WARNING: VIEWERS MAY FIND THE CONTENT IN THE VIDEO ABOVE DISTURBING.***

CHICAGO (WGN)  -- Hours after a Chicago police officer was ordered held without bond on a first-degree murder charge, the city released a shocking police dash-cam video that captured the white officer opening fire on an African American teen on a Southwest Side street, striking him 16 times and killing him.

The video is about six minutes long and appears to show 17-year-old Laquan McDonald running down the middle of Pulaski Road near 41st Street when Officer Jason Van Dyke, standing next to his SUV, opens fire.

It was released to the media after a late afternoon news conference by Superintendent Garry McCarthy and Mayor Rahm Emanuel.

McCarthy said he understood how people will feel watching the video but urged calm.

"The officer in this case took a young man's life, and he's going to have to account for his actions," McCarthy said.  "People have a right to be angry, people have a right to protest."

But police will not tolerate criminal behavior, he warned.

Protesters took the streets in Chicago Tuesday night.