CHARLOTTESVILLE, Va.As the authorities continued to seek answers in the killing of three University of Virginia students, the college and its community paused on Saturday to reflect on the vibrant, beautiful young men who were praised for touching countless lives before theirs were cut short.Family members, students and school administrators were among the more than 9,000 attendees who filled John Paul Jones Arena on the college's campus in Charlottesville for a memorial service for the three students Devin Chandler, Lavel Davis Jr. and D'Sean Perry who were fatally shot on Sunday after a class field trip to see a play in Washington.