I was just telling someone this morning that it's likely that he had a bus ticket out the same way that he took a bus from Georgia to New York.
Buses are the least surveilled method of interstate travel, so it makes sense that the killer took a bus to New York. It's not a stretch to think that he pre-purchased a bus ticket for that same day to somewhere else and then went to the bus station right after killing Brian Thompson, traveling through Central Park to get lost in the crowd of people before the police could assemble all the camera images to begin to identify him and backtrack his travels.
I think he left the city that same afternoon of the killing.
-PJ
“Fox News is reporting that the killer may have left New York City.”
The killer is out of the East Coast by now.