Pub chef Mark Dixie has been found guilty of murdering teenage model Sally Anne Bowman.
The 18-year-old was found dead outside her Croydon home in September 2005.
Sally Anne had been stabbed seven times and bitten but Dixie denied her murder, saying he found the teenager and had sex with her corpse.
The 37-year-old, of no fixed abode, had a string of previous convictions for sex offences.
Detectives believe he may even have killed while living in Australia in the 1990s.
Dixie was brought to justice for Sally Anne's murder by chance when he was arrested nine months later after getting into a minor scuffle over a World Cup football match at a Surrey pub.
His DNA was taken and matched to the murder when it was put on the police national computer 12 days later.
Sally Anne's family cheered as the verdict was delivered by the jury forman.