Kevin: "Did he confess?"
Jimmy: "Not yet, but we should be able to dig something up."
Kevin: "Alright."
For the murder case, they don't have any leads at the moment. Picking up a drug case temporarily isn't bad; at least Mark and the others can feel a little better, and improve their enthusiasm for work in the future.
It's not that Jimmy doesn't want to participate in the murder case; it's mainly because there are no leads at all right now. There are many murder cases that remain unsolved; not every case allows Jimmy to find clues. It's fine with the two of them on it for now; this case can be shelved until a new one comes up.
