I don't think that the murder of Lee Rigby is related to a forum about Calis/Turkey.
Apparently people are not speaking out because of fear what might happen to their residency permits and their properties.
In my opinion foreigners should fear for their rights/properties with the current government. It's a known fact that Erdogan doesn't want foreigners, that he doesn't want tourism, that he doesn't want alcohol, etc, etc.
He wants to turn Turkey into a religious state with the sharia instead of a constitution.
But maybe I'm wrong and are the members on this forum more concerned about Facebook and Efes than the current developments.