ther. My brother and I are both worried. The suspect's mouth twitched into a sinister grin, as if mocking our helplessness.At this time, a large number of police officers arrived. Officer Lu picked up...d the presence of a "dangerous person"."This powder is harmless, it's just for scaring people!" she said nervously. "I just wanted to get away, I didn't mean to hurt anyone.""Go to hell! Is that Lin Y...