You see, the cops were searching for a suspect in the murder of another officer.
You do understand that, right ?
Ok, so far. But we're talking about Brewer, not "the cops".
Now counselor, if someone looked scared while the cops were passing by, what should Brewer's reaction be ?
I don't know. Brewer never even explained what "looking scared" meant, given that he was just standing there staring.
But I don't care. Brewer's not any more required to be rational than you are. I'm more interested in why the cops considered the man that Postal supposedly described as a murder suspect. That's their job, not Brewer's.
But if you have a rational reason for why a person staring in a window should be considered a murder suspect, then present it, rather than trying to turn it around like you always do.