Does anyone know if the rock Rudy used to break in through Filomena's window was ever tested for finger prints or DNA?
They did test it after the defence insisted - they declared nothing, IIRC.
True:
Massei, page 193:
In Filomena Romanelli's room a few items were tested: a hairlike fibre [formazione
pilifera] on the lower part of the window frame, and a presumed haematological
substance on the wooden part of the window which held the broken pane. Both of
these items yielded negative results on analysis. During the second search, on the
suggestion of the defence’s technical consultant Professor Saverio Potenza, the large
rock and two fragments found on the floor of the room were tested, but they yielded
negative results.
Interesting, that the defense had to request DNA testing of the rock, since if Raffaele's touch DNA had been found on the rock (or Amanda's), then that would certainly bolster the prosecution's case against Amanda & Raffaele.
As I recall, while the police (SUPPOSEDLY) did test the rock for DNA, the defense wasn't happy that they only swabbed and tested one tiny area of the rock.
Since touch DNA on that rock would have been crucial evidence, I suspect that they did test the rock more thoroughly and they found Guede's DNA on it, so they buried the results.
The prosecution's theory about the rock was absurd. If Raffael & Amanda did stage the break-in, then they would have had to go outside to the garden to fetch the rock, bring it inside, and bust the window from the inside. If they were already outside with the rock in hand, then why not just chuck the rock thru the window while outside?
If they wanted to stage a break-in, then why not merely unlatch the doors leading onto the balcony since that would be a believable entry point. Amanda could have claimed that one of the gals had likely forgot to latch the doors?
As for the outside shutters being closed, Filomena said at first that she had left them open, then in a subsequent interview she stated she thought she had closed them (but not tightly due to swollen wood), then later when questioned by the defense about her two versions, Filomena said her 1st version was likely true since she made it closer to when the events happened.
Even if Filomena was wrong and she had partially closed the outer shutters, it would have been easy for Guede to reach up there and open the partially closed shutters since Filomena admitted that they couldn't be latched.