Killer is obviously Takarou
cause Javon was gonna tell everyone he was asian or something
and he had to stop him
anyway
the poison has nothing ot do with this cause me and aku-something
threw them all out the window
anyway when javonw as in the laundrette or something like that
takarou snook up behind him and pushed him into one of the washing mashines
javon also banged his head on theside of one of them which is why there is blood on the side of it
then Takarou just closed the door and turned on the dryer
Javon obviously died since the torque of the washing machine is too intence for the human body to handle which caused his casualty
then Takarou just left him in there and left the room like nothing happened