Amanda Knox's behaviour was 'odd', admits Raffaele Sollecito He recounts how they smoked marijuana on the night of the killing and that as a result he could not remember exactly what he did, although he maintained that they watched the French film Amelie and made love in his apartment. The couple had no "real alibi the night of Nov 1 except each other," the computer science graduate writes. Miss Kercher, from Coulsdon, Surrey, was killed in Nov 2007. Miss Knox, known by her teenage nickname as "Foxy Knoxy," and Mr Sollecito were found guilty of murder and sexual assault in 2009 at the end of a year-long trial and sentenced to 26 years and 25 years respectively. But they appealed to a higher court and successfully had their convictions overturned last October. The appeals court in Perugia ruled that they had been found guilty on insufficient DNA evidence and that there was not enough proof to support the prosecution's theory that the murder was the result of a drug-fuelled sex game that span out of control. They had both spent four years in prison. Miss Knox immediately flew home to Seattle with her family, while Mr Sollecito returned to live with his father and stepmother in Bari, in the southern region of Puglia. Mr Sollecito strongly criticised police and prosecutors for coming up with the sex game theory when, he insists, the truth was far simpler and less salacious - that Miss Kercher was murdered during a bungled burglary by Rudy Guede, a drifter living in Perugia who came to Italy from the Ivory Coast as a child. He was convicted of the murder in an earlier trial and is serving a 16-year sentence. Describing his first night in prison after being arrested on suspicion of involvement in the murder, Mr Sollecito said he experienced "great waves of indignation." He was angry at himself for having such an unclear recollection of the night of the murder after smoking marijuana with Miss Knox. He looked across the court room and saw Miss Knox sobbing with relief. She too is writing a book, due out in the Spring. The deal with HarperCollins is reportedly worth £2.5 million. The legal process is not over, however. Prosecutors have appealed the acquittal and Italy's highest court is expected to hear their arguments next March.