The video of a Chicago police officer fatally shooting a black teen led to the firing Tuesday of the head of that city's police department — a former top official in the NYPD, as NY1's Dean Meminger reports.

The Mayor of Chicago, Rahm Emanuel asked for the resignation of his Superintendent of Police, Garry McCarthy.

McCarthy is a well-known name here in New York. He is from the Bronx and came up through the ranks of the NYPD.

He was the deputy commissioner of Operations for the department handling crime strategies back in the early 2000s. And was able to use that experience to head up the police departments in Newark and Chicago.

But the recently released graphic police video of Chicago officer Jason Van Dyke shooting Laquan McDonald 16 times — killing him — led to mounting pressure for the top cop's dismissal.

Although crime has decreased under McCarthy in the nation's third largest city, the mayor said it was time for him to step down.

"He has both modernized the police department and brought real results for the people of Chicago," Emanuel. "But now is the time for fresh eyes and new leadership to confront the challenges the department and our community and city are facing."

The shooting took place back in October 2014, and was captured on a police dash cam. 

The video contradicted the department's first account of the shooting — that the teen ran toward the cops with a knife. The video showed him keeping his distance while cops pursued him.

After Officer Van Dyke was charged with murder last week, a judge ordered the video to be released. 

There are calls for the mayor to resign as well. He says he takes full responsibility for the police department, but would not say he was stepping down.

"I've asked five respected Chicagoans who are leaders in the criminal justice system to do a top to bottom review of the system of oversight and accountability, training and transparency that is currently in place for Chicago's police officers," Emanuel said.

That special police panel will also help search for a new top cop for that city.

Which could include some recently retired NYPD Chiefs.