If you jumped out of the window of the cable car, there's a 50% chance they will appear here instead of Zombie Dogs. If you instead used the emergency brake, they always appear here.
If you jumped out of the window of the cable car, there's a 50% chance they will appear here instead of Crows. If you instead used the emergency brake, they will never appear here.
If you used the emergency brake in the cable car, he will come to your aid whilst fighting Nemesis after you rang the clock tower bell. If you instead jumped out the window, he will arrive shortly after the battle has ended.