In my opinion, the casting of Ice-T as Det. Fin Tutuola was an inspired choice. In this episode we got a chance to see a little of his past as an undercover narcotics cop.
I liked how Fin's passion in his current assignment drove him to pursue this case even though he was still on leave from his recent shooting. He was not afraid to use an old contact from his narco days to help close this one.
The other revelation was in the introduction of viewers to his son. Previous shows had included allusions to his existence, but this episode gave us a flesh and blood exposure; as well as some insight into Fin's sadness into how things have turned out.
Another nice bit of acting, but not overacting, on the part of Ice-T: occasional winces coupled with protective body language. Unlike so many gunshot characters, he was actually suffering the effects of being wounded!