Let me run it down for you then.
Samuel: What does that mean? "The yellow arsonist?"
Gant: I thought I heard something like a diary or something.
Inspector: Ah, well, it's the diary belonging to Sager Paten, the son of the landlord of the apartment building that was caught on fire.
Mitch: It was written there right on the diary that the yellow guy suddenly came back home in the middle of the night and had a quarrel with Sager's father. The three of you said that you'd gone out on the night of the fire and returned home in the morning, didn't you?
Alane, the preadolescence female member of the club, added on to Mitch's deduction...
Alane: If that's so, then somebody must be lying!
as did Jack, a more chubby member of the club.
Jack: The one who's lying is the yellow guy, and he's the criminal who set fire to the apartment building.
Ryan: It's true that I know the landlord's son.
Samuel: Was that boy calling somebody things like "yellow guy?"
Gant: I don't know.
Inspector: Well now, it's just something a child said, so don't worry about it.
The three suspects looked gave each other an inquisitive stare, as if to implicate an accusation. The Inspector, who was beginning to feel the instability of the situation, crouched down towards the three members and whispered, "It's a bad idea to be talking about the 'yellow guy.'" to which the three members retorted at the same moment, "Huh? Why?"
Inspector: If they know that he's the arsonist, won't all three of them insist that they aren't the 'yellow guy?'
Mitch: Ah, I see.
Alane: That's right.
Doyle: No, it's OK.
Inspector/Mitch/Alane/Jack: Huh?
Doyle: Which of these three people is the yellow arsonist? I already know who.
Ryan: Wh-What did you say?!
Inspector: Hey, kid, is that true?
Doyle: Yeah. Alane, let me borrow the diary for a sec.
Alane: OK.
Doyle: Sager''s diary also mentions a "red guy" and a "white guy." I've figured who the 'red guy' and the 'white guy' are, so that's how I figured out who the 'yellow guy' is.
Ryan: There's a 'red guy' and a 'white guy,' too?!
Doyle: Yeah, this is what's written in the diary. "The weather has been bad this morning. I'll have to get up early or I'll miss school, but I bet the red guy can sleep in late." That must mean that the red guy does something every morning, but since it was raining that morning, it wasn't necessary to do that something. What do you think it could have been?
Mitch: Maybe taking out the laundry to dry?
Jack: PE would be canceled in the rain!
Alane: Adults don't have PE.
Mitch: Then, what about the 'white guy?'
Doyle: Remember, didn't you find a lot of mini-cars outside Sager's room? Sager definitely loves cars. If you think about "cars" and "white," what's the first thing that comes to your mind?
Jack: But there are a whole bunch of white cars.
Finally, Harley Ante, a fifth member and the second female of the club, finally spoke up.
Harley: An ambulance. The body of the vehicle is mostly white, so it would be perceived as a color of such by a child.
Jack/Mitch/Alane: That's it!
Mitch: But, what does that mean? The "ambulance?"
Doyle: What does an ambulance do for you?
Jack: It transports injured people.
Alane: They give your medical care inside the vehicle.
I will stop here, so as to give you more opportunities in identifying the suspect, especially with all these new clues given. :wink: