I said there was no plausible reason why he drove to NYC to kill cops instead of killing cops in Baltimore if it wasn't for the anti-cop rhetoric and the publication of that anti-cop rhetoric coming from NYC. That's undeniable unless you think a little voice informed him of the matter.
You keep dismissing this yet your only explanation is "because Garner was killed by NYC cops". Well, so what? How did he hear about Garner and why did it impress him to the point of driving to NYC to kill cops?
As an aside, I'm interested to see that CNN is now noting that this guy was in NYC 3 hours before he shot the cops, caught on surveillance video in a shopping center in Brooklyn. Police are interested, and I'm pretty interested too, to see what he was doing in NYC for three hours prior to assassinating the cops. Did he meet anyone there? Did he attend any protests? Police are interested to know if he had any accomplices. I'm not sure we've seen or heard all this story has to offer.