National Forensic Doctor

The mechanic Zhang Fan, with a strong build and a happy family, had one son and one daughter, and his beloved wife raised three dogs and two cats. When he was caught, he was very calm, neither shouting like "Tarzan" nor claiming innocence like "Two He."

Seeing Zhang Fan, Liu Jinghui and the others, as well as Ni Cha and others from the Dama Police Station, expressed satisfied looks.

This is exactly the appearance of Zhang Fan the mechanic, fitting the typical characteristics of a serial killer.

When asked why he killed, Zhang Fan’s answer was very much in line with a serial killer’s thought: "Just felt like it."

True pinnacle achievements are often driven by heartfelt impulses from the inside out — crime is no exception.

Those who commit crimes for fame or profit are always the easiest to catch, while those who directly head towards their goals often experience the most setbacks.

The reason why serial killers are difficult to catch is that initially, they are not in it for fame or profit; it’s simply a child’s black heart, purely driven by the inner thrill of killing.

The usual tricks used by the police are ineffective in such cases. They can only follow objective clues to investigate, which is actually the hardest way to handle cases. Why do so many foreign police officers use torture to handle cases, taking risks for national cases? Isn’t it because they lack the ability to solve cases through clues and have to use fists for clues?

In contrast, the cases solved by following objective clues are easier to examine, and to some extent, the suspects also acknowledge such evidence more readily.

Especially after finding the murder weapon, a dagger, from Zhang Fan’s work parts warehouse, Zhang Fan showed little resistance when he saw the interrogating officers again.

Reporters who heard the news soon rushed into the Dama Police Station.

Compared to various entertainment news, crime cases, due to their authenticity, always have a good market.