The strangest thing is the police entering Sollecito's apartment on the 15th and noting the "strong smell of bleach" as something indicative of foul play. When one stops to consider that Sollecito and Knox had been in custody since the evening of the 5th - almost 10 days earlier - it doesn't take a genius to conclude that any "smell of bleach" that might have been present in the apartment on the 15th had nothing whatsoever to do with Sollecito or Knox.
In fact, isn't there some pretty strong evidence that this "strong smell of bleach" was instead from the disinfectant that Sollecito's cleaner had used to clean the floor? If the kitchen knife were still smelling strongly of bleach 10 days after Sollecito or Knox had access to it, then it must have essentially been doused in neat bleach 10 days (or more) previously. And that would have obliterated anything on the knife.
The obvious suggestion is that the knife wasn't actually cleaned with bleach. It was used and cleaned in the normal way - using washing-up disinfectant. Knox's DNA was on the handle because she was the last person to handle the knife - perhaps while putting it away in the drawer after it had been washed. And Meredith's miniscule amount o DNA on the blade was the result of contamination in the laboratory (or maybe something more sinister).
By the way, aren't captains supposed to remain with their sinking ships - either until they are the last person to be rescued or they go down with their ship? Has nobody seen any films about the RMS Titanic?? Things have changed in the 21st century, obviously.......
