A mystery in Quincy continues to deepen. Who is flying around the city from dusk to dawn, for the past ten days or so? "It's frightening, not just weird, but frightening," said one resident of the Wollaston section. It's not the state or local police doing the flying, and the FAA is giving out little information, even to city officials. "It's frustrating, it really is," says City Councilor Brian Palmucci about his conversation with the FAA.