Former Chicago police officer Jason Van Dyke shot the Black 17-year-old 16 times and was convicted of murder in 2018.
Carmella Means posted a photo of herself kneeling with a fist raised and holding a “Black Lives Matter” sign. Chicago's FOP Lodge 7 suspended her.
At least 16 Chicago police officers worked together to conceal or downplay their colleague’s murder of a black teenager.
They had been on desk duty since 2016.
The former Chicago police officer faced up to 96 years in prison for shooting Laquan McDonald 16 times on the night of October 20, 2014.
They were accused of falsifying police reports after their colleague, Jason Van Dyke, fired 16 shots at the 17-year-old black teenager.
Public interest in the case exploded after Chicago released damning dash-cam video contradicting police claims.
Last week, Officer Jason Van Dyke was convicted of second-degree murder with a firearm in the 2014 shooting death of 17-year-old Laquan McDonald.
Each count represented one of the 16 bullets the officer fired at the black teenager.
He's the first Chicago police charged with an on-duty in over three decades.