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

Chapter 63 Who's Suspected

Wilson, Xavier, Yeoman, Zenger, and Osborne are five explorers, and they often go to some remote places to explore together.

One evening, five explorers, Wilson, Xavier, Yeoman, Zenger, and Osborn, camped and rested on both sides of a river.They each picked a satisfactory location, set up a tent, and set up a radio station in the tent to communicate with each other.

That night, Wilson used the radio to communicate with the other four people from time to time.But after 4:10 p.m., he did not hear back from Osborn.So Wilson contacted the other three to express his concerns.

Osborn was found dead the next morning, having been murdered.

Evidence from the crime scene indicated that the murderer had arrived at Osborne's tent by water.Each explorer has a non-powered rubber raft, and they have had the opportunity to use it the night before.

Wilson suspects that Xavier, Yeoman, or Zenger killed Osborne.However, Wilson dispelled doubts about two of them on the basis of the following facts:
1. The radios of these 5 explorers can only be used in the tent.

2. The autopsy found that Osborne was killed in his tent before 10:30 the night before.He was shot and died instantly.

3. The murderer took a non-powered rubber raft to go to Osborn's tent and return to his own tent.

4. Xavier's tent was pitched downstream of Osborne's tent, Yeoman's tent was pitched directly opposite to Osborne's tent, and Zenger's tent was pitched upstream of Osborne's tent.

5. It would take at least 80 minutes for any of the three to go to the Osborne tent on a non-powered rubber raft and then return to their own tent.

6. The flow of the river is fast.

7.对威尔逊发出的无线电呼叫，各人的应答时间如下：应答者应答时间泽维尔8∶159∶40约曼8∶209∶15曾格格不入8∶259∶50奥斯本9∶15那么，在这3人中，仍被威尔逊作为怀疑对象的是谁？

[Answer] The time between the first call and the second call is 85 minutes, and the time between the second call and the third call is 75 minutes. None of the three can go back and forth within 75 minutes, so Osborne's death time is between the first call and the second call.If Osborne was killed after answering the call at 9:15, neither Yeoman nor Zenger could return to camp in time after killing Osborne at 9:15, so Wilson was still the suspect Xavier.

(End of this chapter)