Beggars live at the very bottom of society, begging for a living all day long. It's safe to say anyone can trample on them, so who could they possibly offend?
When such things happen, the first thought that comes to mind isn't vendetta. How can a beggar have any grudge with someone? Even if a beggar does have a grudge, it's impossible for dozens of beggars spread across different areas to all have a grudge against the same person.
Therefore, the police's first assumption is that this is a serial killer case.
The news broadcast also reminded people returning home late at night to stay safe.
The news also included street surveillance screenshots, showing the killer's back. It was dark at night and the camera was distant, making it impossible to see the man's face clearly in the video.
He wore a long black trench coat, black pants, black leather shoes, and also had on a hat and mask.