The family of UK student Meredith Kercher who was murdered in Italy four years ago, says the search will continue to find out what really happened on the night she was killed.

Yesterday an Italian court acquitted Amanda Knox and Raffaele Sollecito, both of whom had been charged with her murder.

Only 24-year-old Rudy Guede has been convicted for Kercher's murder.

But it was said in court that Guede did not act alone, raising questions following the acquittals as to who had also been at the murder scene.

The victim’s family said while they accept the decision, and respect the court and the Italian justice system they are still left to find out who killed Meredith.

They are questioning how a decision that was so certain two years ago has been so emphatically overturned.

Meredith's sister, Stephanie, said the biggest disappointment is that the family still doesn’t know what happened and the possibility exists that the person responsible is still out there.