In the wake of the nation’s 50th mass shooting so far this year, John Mellencamp says enough is enough. The singer issued an urgent statement on Friday (Feb. 16) just days after the killing of a popular Kansas City DJ/radio personality and the wounding of more than 20 people at Wednesday’s parade celebrating the Kansas City Chiefs’ Super Bowl LVIII win on Sunday. “Excuse me for saying the obvious truth. I do so out of love for this country and the pain of learning, once again, that children have been killed by gun violence,” the longtime gun control advocate wrote...