"The birth of a murderer has plenty to do with his living environment. The hotel owner and the old man have such a cavalier attitude toward human lives—there has to be a reason, and that reason should have plenty to do with the old man's wife." Chen Ge's eyes darkened. "Pay attention to the notebook's content. On the first of March, the wife was captured. She said that her husband had gone insane and would only give her three slices of bread and one glass of water each day. For a normal person, that's enough food to live; the old man was probably purposely trying to limit her food intake.
"Then, you pay attention to the later content. The wife's diary circulates around the topic of food. The way the old man tortures her is not by breaking her limbs but by pulling out her teeth. This proves that he hates that she was consuming food.