I'm thinking this is more than a coincidence especially since at least one of them were in uniform. I'm thinking these are ambushes like the situation in LA(?) where cars were being attacked and in one case gas pumped into a building.
And here's the real irony in regards to Daley's attempt to keep the public at the mercy of what Superintendent Jody 'J-Fled' Weis's statements about them not being able to stop violent criminals:
shot to death this morning in an apparent robbery attempt after finishing a shift guarding the mayor's home,
Does anything else need to be said about Daley's priorities?