A murderer who goes by the alias "Yoshiro" has been going around Tokyo killing people (there are 12 victims). He has perfected the art of murder and leaves behind absolutely no evidence whatsoever.
Detective Takada has been charged with investigating the Yoshiro case. Takada has zoomed in on a single Suspect. He has absolutely no proof but the Suspect has the right psychological profile and he was around two of the places around the time two of the murders occurred. Takada invites the Suspect in for some tea where he proceeds to interrogate him.
The Suspect insists that he knows nothing about the Yoshiro murders. When pressed on his whereabouts during the times of the murders, the Suspect insists that he doesn't remember. After about 30 mins of this back and forth, Takada says:
"Alright. You may go. It seems I was mistaken."
Before the Suspect leaves, Takada adds: "By the way, I think its only fair that you are compensated for the time you spent in this unfair interrogation. Come back tomorrow at 3 PM to this place, I shall have a sum of compensation for you."
The Suspect is pleased. Then the following exchange happens:
Takada: ...Yoshiro?
Suspect: Yes?
Takada: Do you think 11,000 Yen, in cheque will do?
Suspect: I think its fair.
Takada: Yoshiro?
Suspect: Yes?
Takada: Thank you for your time.
...
Shortly after leaving the building, Takada's officers surround the Suspect and arrest him for the Yoshiro murders.
In a court of law, the ONLY EVIDENCE against the Suspect are as follows:
1. The Suspect is established to have been very close to the place where two of the 12 murders occurred (no one knows where he was during the time of the other murders, the Suspect has no alibis, they insist "they don't remember where they were"
2. The Suspect answered Takada's calling of him by the name "Yoshiro" twice during the informal interrogation
(There is absolutely no other evidence)
...
Discussion:
1. If you were on the jury, and you were asked to convict only if is "beyond a reasonable doubt" that the Suspect is the murderer... would you convict? Is there enough evidence?
2. What is the weight that should be afforded to the fact that in an informal investigation, while distracted, the Suspect responded twice without objection/comment while being called Yoshiro?
3. (this is a slightly different take from 1); do you PERSONALLY think (irrespective of jury duty) that the Suspect, based on the facts, was Yoshiro?
Please discuss and explain your answers.