```
The second case was also a couple, who ran a pork shop.
Zhou Heng knew them well; in the past, when he did not have much spare cash but craved something tasty, he would go to this couple's pork shop to buy some affordable ribs.
The couple knew that he lived alone outside, with both martial arts and earning a living not being easy tasks; they took care of him each time by giving him an extra couple of ounces of meat.
However, several days ago, the couple argued over accidentally cutting an extra ounce of meat during a sale, and in the end, the wife hacked her husband to death and then committed suicide, leaving only a six-year-old child alone in the world.
The third case involved two brothers who took care of their elderly parents together.
On the surface, the two brothers got along well, supporting and helping each other, taking good care of their elderly parents; but a few days ago, they quarreled over who should serve the parents their meal.
