Question about the "Let It Be" case

[ppan91]

Hey guys,

Hope I didnt miss out anything, but why in the "Let It Be" case (file 670 - 673), when they first found out the 3 suspects, they didn't check if any of them has the scar on their back? because if they had done so and found out that none of the 3 had scar, they would have guessed that the serial killer years before that was the victim himself?

[hakkaino7]

you mean the 3 relatives of those who died? That's because there's no proof to even call them a suspect, let alone the criminal. And since the one really suspected was already caught by the police.

[ppan91]

but did they check if "the one really suspected was already caught by the police" had a scar on his back?

[Chekhov MacGuffin]

but did they check if "the one really suspected was already caught by the police" had a scar on his back?

The suspect from the previous ginger case was already investigated and cleared because he had an alibi. I'm positive the cops checked the three relative suspects for scars 15 and 20 years ago. The police didn't find any evidence which no doubt means none of them had a one scar. While I'm sure the police kept them in the books, the fact that they were looking for new suspects means that they believed that unfortunately they hadn't uncovered the real culprit. That was true because the real culprit, the criminal psychologist Hiramune, wasn't even on the police radar.
Conan and the police don't have any suspects for the Hiramune murder at first, they just went around to question the relatives of the previous deceased to try to gather some leads. While those relatives were considered suspects in the past, initially there isn't any evidence to suspect them now because Conan hasn't figured out the murderer is a copycat. The name-age-profession boxes tip the readers off that they are the suspects for the arc, and although they were cleared ealier, it seems that Conan can see the mystical floating suspect heads-up displays.** For the fourth wall's sake you can tell Conan only sort of suspects them at first because he doesn't ask them questions about their alibis during the initial questioning pass with Takagi; instead, Conan focuses his questions on trying to tie the four victims together in order to find new suspects. He does, however, ask Haibara if they looked like the man she saw and later questions Takagi about the alibis briefly. By the time the police nab the new suspect, Kibo Dokurou, Conan has already figured out it wasn't him and figures out it was one of the relatives, Nabei Eiki. The fact that Conan only figures out the copycat bit and the Z scar later makes it strange that he would suspect the cleared suspects as much as he does rather than focusing on looking for new suspects.

**The most egregious example where Conan seems to have seen the mystical HUDs is in the bus jack case when Akai is introduced. Despite never talking to any of the suspects including Akai, Conan somehow knows his name later. He may have asked the police later, but there wasn't any evidence of that...

Spoiler:

[Abs.]

**The most egregious example where Conan seems to have seen the mystical HUDs is in the bus jack case when Akai is introduced. Despite never talking to any of the suspects including Akai, Conan somehow knows his name later. He may have asked the police later, but there wasn't any evidence of that...

Spoiler:

In the original language, it is clear that he knew Akai's name from when the police questioned everyone involved in the bus-jacking incident.  The speech bubble should be similar to this: "If I remember correctly, at the questioning, something like Akai Shuuichi was what was said."