Question: One of Jon's hands moved under his cloak.
Jon was grabbing his weapon.

Answer: it is not possible to tell

Question: White would already be on the train, lured by the promise of ambushing Lincoln.
White got on the train in hopes of setting Lincoln free.

Answer: no

Question: It is also the hub for bus routes around the city.
The city is very large and most people ride the bus to get to their desired location.

Answer:
it is not possible to tell