Both sites are sources of information presented by people with extremely strong emotional investments in the case. The Guilty site seems to be populated by nothing but emotional arguments (even looking through the Micheli Report link only produced second-hand commentary couched in strong emotional terms, i.e., "our translators cried..."). The innocent site is less emotional. Neither provide objective third-party sources of information, so taking either side's arguments as "facts" seems to be undertaking a bias to begin with.

Even after killing an hour going through the sites, I'd have to abstain.