From left: Former Chicago Detective David March, officer Thomas Gaffney and former officer Joseph Walsh attend a pretrial hearing Tuesday, Oct. 30, 2018. (Zbigniew Bzdak / Chicago Tribune / Pool)

A Cook County judge will decide next week whether she’ll grant a request to dismiss charges against three Chicago police officers accused of working to cover up the shooting death of black teen Laquan McDonald, less than a month before they are set to face trial.

The scene of the Laquan McDonald shooting taken on the night of the fatal incident is shown on a screen to jurors during the trial of Chicago police Officer Jason Van Dyke on Tuesday, Sept. 18, 2018. (Chicago Police Department)

Jason Van Dyke is the first Chicago police officer to be convicted for an on-duty shooting in 50 years. Sentencing and an appeal are sure to follow, but as that case comes to a close, another is yet to begin.