In a park, an old man was pushing a little girl on a swing. But this scene, which should have been warm and peaceful, terrified passersby so much that they called the police. The girl on the swing had already stopped breathing. The blank-faced old man kept lifting her onto it, over and over, swinging her through the air... 1 The evening glow lay like a thin veil over the small town's park. I had just finished a tiring day at work and was looking forward to going home and enjoying a moment of peace. But a sudden phone ring abruptly shattered that brief respite. "Officer, something terrible has happened at the park! Old Zhang and"