This is the cbs evening news with scott pelley. Pelley good evening. The use of deadly force by police is once again under investigation. This time in the suburbs of st. Louis. Today the f. B. I. Entered the case of an officer in ferguson, missouri, who shot an unarmed black man to death over the weekend. That sparked rioting. Fires were set. Stores were looted. Today there were peaceful protests along with calls for answers. Dean reynolds is in ferguson. crowd chanting reporter protesters in this largely black community were demanding to know why an unarmed 18yearold who was supposed to start Technical School today wound up in the morgue instead. Enough is enough Reporter Police in riot gear stood by todays protest to guard against a repetition of what took place here overnight. Looting, burning and 32 arrests. Donald harry watched it all. Its like living in beirut. My house is under siege. Reporter Ferguson Police chief tom jackson waded into the protesters this morning and got an ea