An American and her Italian boyfriend on trial for the murder of British student Meredith Kercher were laughing and kissing at the police station hours after the discovery of Kercher's body, a Perugia court heard Friday.
Giving evidence at the trial of Amanda Knox and Raffaele Sollecito, British student Robyn Butterworth said Knox ''seemed not to show emotions'' when Kercher's friends and flatmates were gathered at the police station on November 2, 2007.
Kercher, 21, had been found that morning semi-naked and with her throat slit in the house she shared in Perugia with Seattle-born Knox and two Italian women.
''We were all crying, but I didn't see Amanda cry. Raffaele and Amanda were kissing, they were showing affection. Amanda was laughing,'' said Butterworth.
Knox did not enter Kercher's room after police arrived to break down the locked door, but the British student told the court she overheard Knox saying that she had found the body.
''I heard her say, 'I'm the one who found her, it could have happened to me', and that she had died by bleeding to death,'' Butterworth said.
Kercher spent the hours before her murder with Butterworth and two other British friends before returning to the shared flat.
In an address to the court Friday, Knox reiterated her innocence and said she had ''faith that everything will work out''.
Sollecito was also present for the hearing.
A third defendant, Ivory Coast national Rudy Guede, 21, was sentenced to 30 years for sexually assaulting and murdering the British exchange student at a separate trial in October.
The prosecution claims Kercher was killed when all three defendants tried to force her to participate in ''a perverse group sex game''.
Prosecutors say Knox was responsible for cutting Kercher's throat while Sollecito and Guede held her down.
Knox, 21, and Sollecito, 24, are also charged with the theft of 300 euros, two credit cards and two mobile phones belonging to Kercher as well as simulating a crime to make it look like an intruder had broken into the house.
The defendants deny the charges against them.
Their legal teams are set to argue that Guede broke into the house and carried out the attack single-handedly while Knox and Sollecito spent the night at Sollecito's house.
The trial of Knox and Sollecito, which began last month, is being held in stages and is expected to last until the summer.
