Police arrested 74 people at a Black Lives Matter demonstration in Rochester, New York, on Friday amid nationwide protests against police shootings of black citizens. The Rochester demonstration was one of many held in the wake of deadly police shootings in Baton Rouge, Louisiana, and suburban St. Paul, Minnesota, and came after the sniper attack that killed five police officers in Dallas. Texas Leaders Anxious to Begin Healing Process Officials said they had made attempts to communicate with organizers and thought the protest was ending before the arrests were made. "We actually started demobilizing officers and ... arranging for some...