I found footprints from two different people. I'm assuming this means there are two killers involved - will I have to accuse both?
Heh, just you wait until you get 4 hairs and no barber contact on an A.I
...then thinks on Shen (the stupid, mean, horrid barber in Shanghai) and runs away sobbing*
The formula for solving cases:
Liar/none + PE = Guilty
Liar/none + WE = Guilty
WE + WE = Guilty
You can always solve by WE if the shoemaker clams up on you and will not give you which suspect the footprint does belong to.