Crime scene: 162 mystery solving puzzles to find out who the murderer is

Chapter 153 Who Killed the Doctor

A doctor in a psychiatric hospital was killed and the four patients he treated were questioned by the police.The police learned from eyewitness testimony that on the day of the doctor's death, each of the four patients visited the doctor's apartment once alone.Before the arraignment, the four patients agreed that each of the statements made to the police was a lie.

A: "None of the four of us killed the doctor."

"He was alive when I left the psychiatrist's house."

B: "I was the second to go to the psychiatrist's house."

"By the time I got to his apartment, he was dead."

C: "I was the third to go to the psychiatrist's house."

"He was alive when I got to his apartment."

Ding: "The murderer didn't go after I went to the psychiatrist's house."

"By the time I got to the psychiatrist's house, he was dead."

Smart reader, can you tell from this who killed the doctor?

[Answer] A is the murderer.

Since what everyone says is false, everyone's words are reversed to become the truth:

A. One of the four men killed the doctor. When B. A left the doctor's apartment, the doctor was dead. C. B is not the second person to go to the doctor's apartment. D. The doctor was still alive when B arrived at the doctor's apartment. E. C. was not the third person to arrive at the doctor's apartment. When F. C left the psychiatrist's apartment, the doctor was dead. G. The murderer went to the psychiatrist's house after Ding. The doctor was still alive when H. Ding arrived at the doctor's apartment.

According to these facts, A, D, H, B, F, B and D went to the doctor's apartment before A and C.According to C, D must be the second to go, so it can be concluded that B is the first to go.According to E, A must be the third to go, so it can be concluded that C is the fourth to go.According to the real situation G, it is determined that A is the murderer.

(End of this chapter)