sorry i dont get what wall i get the blood from, i think i am going mad playing this game!!
there are 2 knives: the cooker's one and the murder's one (hidden in the house)
Spoiler
look the wall, touch it, and use objects on hotspots in the house of the murder
i don't know witch house is from the murder. i have to identefy him from the photo. but don't know how
;D ;DThanks a lot i might get somewhere now i only had 1 knife