Q: One important trait Kyoko has that proves the body doesn't belong to her...
A:
Kyoko's gloves
Use Fake Nails to shoot "must've been wearing gloves."
Use Tattoo on the Right Hand to shoot "we can't identify the body."
Select Mukuro Ikusaba's Profile.
In the Hangman's Gambit, spell WOLF.
Q: Based on what we know, there can only be two suspects...
A:
Makoto and Kyoko
Time of the crime
Q: So what time was the body discovered...?
A:
At 9 o'clock
Use Sprinklers to shoot "10 o'clock at night."
Final Strike: Exploded Body Analysis
Select the Tarp.
Use Body Before the Explosion to shoot "didn't get dirty."
The trap
Select Chicken Coop Chickens.
Use Disguised Dead Body to shoot "getting stabbed."
Select Monokuma File #5.
Select Fragments Near the Dead Body.
Absorb "hit on the back of her head" and shoot "the victim's fatal injury."
Select Titanium Arrows.
Use Bloody Duct Tape to shoot "too thin."
Select Woodblock Key.
Absorb "the locker key in my own room" and shoot "there's proof."
Q: I have to decide right here and now whether or not to expose Kyoko's lie...!
A:
Choose to let it go to progress the story. Choose to pursue the lie for a bad end and a trophy in the Vita and PS4 versions of the game.
Bad ending: Shoot "Kyoko's Account" when she mentions that "she's not in her room". The rest will play out with everyone voting Kyoko and the ending with the remaining group's photo revealed at the end.