CHESTER TOWNSHIP, Pa. -- Pennsylvania State Police shot a family's fenced-in pet to death Tuesday. Troopers later admitted they weren't supposed to be in that yard in the first place. State troopers were in the neighborhood, trying to serve a warrant on someone. They sent a couple of extra troopers around to guard the back door. Those officers, however, cut through a neighbor's yard, and that's when they came across Sheeba, a very protective family dog, NBC 10's Tim Furlong reported. "She was doing her job. That's what she does, she protects us," said DiQuan Dill said. DiQuan and his...