S1·E18 Fools Russian

Elena, Jack's ex-girlfriend, is found dead in an alley, shot three times. The prime suspect is a Latvian businessman who she had often been seen with in a coffee bar.

Santoro is asked to help out his nephew with a few speeding tickets and ends up losing his temper with the highway cops and insulting them.

Doyle and Ray keep being called to the apartment of a couple who are continuously fighting.