Several news sites (including the Daily Mail Online, the Sun, Sky News and the Guardian, and that's just the UK ones) heard the judge say "guilty" about slander, & posted the wrong verdict about the murder conviction.

It's not unusual to have more than one story ready to go, but the Daily Mail online was particularly detailed:

As Knox realized the enormity of what judge Hellman was saying she sank into her chair sobbing uncontrollably while her family and friends hugged each other in tears.

A few feet away Meredith's mother Arline, her sister Stephanie and brother Lyle, who had flown in especially for the verdict remained expressionless, staring straight ahead, glancing over just once at the distraught Knox family.

Prosecutors were delighted with the verdict and said that 'justice has been done' although they said on a 'human factor it was sad two young people would be spending years in jail'

Maybe they tapped phones in another Everett branch?