 We're neighbors, we're friends, co-workers, citizens, and most importantly, we're fellow Americans. Mr. Biden acknowledging the deep differences in both parties and insisting the nation cannot solve its debates with violence. Andy Field, ABC News, Washington. In the meantime, on Sunday, Pennsylvania's governor pays tribute to the volunteer fire department chief, former chief of the department who was killed in Saturday's attack as he shielded his family from the sniper's gunfire. Here's ABC National correspondent Brian Clark.