But even if blood, it was DNA tested and it is not MK, so where would it have come from. You would only be leaving bloody footprints in the victims blood bc no one else would generate so much blood.
Luminol also reacts w rusts from tap water, cleaning products, etc. if AK was running from the shower she could have tracked the luminol reacting stuff from cleaning products in the shower.
You have to apply force to stab someone. It would be hard to restrain someone without shoes.
Pics on that pro innocence website cited above show visible signs of the RG bloody prints. It is faint so I could see why it would not be totally obvious, especially given the commotion that morning but you definitely can see blood. But why wouldn't AK have scrubbed them all away? She may not have known they were not RS. Besides,why would she want RG be caught at all? He could have turned on her (as he did). Better to leave the crime unsolved I think in her mind.
Was the water in the cottage reported as being high in iron, turning clothing yellow? If not, then I don't think that "rust products" in the water is the cause. We know that Knox didn't clean - that was a point of contention between Knox and her housemates. I doubt that she tracked iron rich water or cleaning products that she didn't use down the hallway, so it must have been something else.
Why wouldn't Knox have stopped dead in her tracks when she found the front door wide open, bloody footprints leading down the hall, a broken window in her roommates bedroom, blood on the bathmat, blood on the sink, feces in the toilet ... why would she leave the door unlocked, have a shower, boogie down the hall on a bathmat to get a towel, leave the toilet unflushed, take a mop and walk to Sollecito's apartment for a nice lunch, phone Meredith's phone to see if the phones had been found, phone Filomina, neglect to mention the call to Meredith's phones even though Filomina immediately asked her to make that call, went to the cottage, phoned mom, delayed phoning the Carabinieri until after the Postal Police arrived ... it's just plain bizarre.