CHICAGO (WLS) -- Chicago shootings over the holiday weekend have left more than 75 shot, 13 fatally, police said. The latest shootings attacked groups of teenagers. Gunfire erupted in the West Garfield Park as three teens were standing on a front porch in the 3800-block of Gladys Avenue when someone in a dark-colored car opened fire, police said. Just a few hours earlier and less than two-miles away, police said a 14-year-old boy walking down the block in the 100-block of North Francisco Avenue when an unknown gunman opened fire on him. He was struck in the right arm and...