The retrial of Amanda Knox is underway in Florence - for the murder of her 21-year-old British roommate - Meredith Kercher.
The Seattle native who's case has become an international sensation - spent four years in jail - after an Italian court convicted her and her ex-boyfriend Raffaele Sollecito of killing Kercher in what was described as a drug-fuelled sexual assault.
Then, in a dramatic reversal, the two were released from prison on appeal in 2011.
But, in March, the Italian supreme court overturned these acquittals - citing "contradictions and inconsistencies" - and paving the way for a new appeals trial.
26-year-old Knox will not return to Italy for the proceeding - while Sollecito is expected to attend some of the hearings.
In court on Monday, Sollecito's lawyer demanded more testing of the crime scene.
SOUNDBITE: Raffaele Sollecito's lawyer Giulia Bongiorno, saying (Italian):
"The room is the crime scene and seeing as that room was fille
