Was there a killer organization in ancient China?

The East-West Factory in the Ming Dynasty, and the Sticky Rod Department in the Qing Dynasty. This is official

People's organizations mostly appear in the form of cults. As an organization, it is difficult to maintain by killing people.

Many of them are organizations under cults that carry out tasks as killers, killing people and stealing goods, etc.

Such as

The "Maitreya Sect" heresy

Mingjiao

White Lotus Sect

Yuanmo Xianghui and the Red Turban Army

Zhai Jiao

Eastern Mahayana Sect

Bagua Sect

God Worship Association, Hong Xiuquan and their followers< /p>

"The Taiping Heavenly Kingdom"

That's about it.

There are also killer organizations like foreign invaders, but they are very secret, so I won't go into details