In the final aerial, the baddie takes off in a Gazelle and hides behind some trees. Moments later and throughout the rest of the aerial, it's suddenly a Huey.
Sherman: Are you sure those government stiff didn't suspect anything?
Longfellow: No, they're off looking for the van, just like you planned. Look, I've done everything you asked.
Sherman: As soon as Brook ditches the van, he'll call in. When I hear from him, you'll hear from me!
Jo: You've got to see a doctor.
Tony: Joey, I've already seen a doctor. And a specialist, and a therapist, and the scarapist, and there's nothing more that they can do.
Although they never appear on screen together, and Dominic never mentions it to anyone in the previous 3 seasons (just like he withheld the existence of his daughter in Sins of the Past), this is the first and only appearance of his brother, Tony.