[SauronOfMordor]

While he may not have known her exact age or the date it is more then likely that he would have know Neely's history of attacking people on that line if he was a regular traveler on that subway train.

Commuters will ride the same train day after day for years. The panhandlers will ALSO ride the same trains day after day, getting on the train where they live, riding it for a while, then getting on the train going back.

After a while you recognize the "regulars".

[Harmless Teddy Bear]

After a while you recognize the "regulars".

Exactly.

For good or ill.