Closings arguments are expected today in the trial of the man accused of killing NYPD Detective Jonathan Diller.

Guy Rivera is standing trial, accused of shooting and killing Diller during a traffic stop two years ago in Queens.

The trial started about three weeks ago, and Diller’s wife Stephanie is among those who testified.

After closing arguments, the jury will begin deliberations.

If convicted, Rivera could be sentenced to life in prison without the possibility of parole.