Raffaele Sollecito speaks out about Meredith Kercher case
4 September 2013 Last updated at 18:36 BST
The Italian man convicted and then cleared of killing Meredith Kercher has told the BBC's HARDtalk programme that he does not know if the "nightmare" will end.
Raffaele Sollecito, who is awaiting a retrial over her murder, said: "I'm still in the tunnel, I'm fighting and striving to see the light. It's still somewhere, I know that it's somewhere, but I don't know where."
He also spoke of his attempts to contact Meredith Kercher's family to offer his sympathy, but said it was not the right time yet to visit her grave.
He and ex-girlfriend Amanda Knox were found guilty in 2009 of killing the British student in Perugia, Italy, but both were later acquitted.
In March, Italy's highest court overturned both acquittals.
Miss Kercher was found dead in a flat she shared with American Ms Knox.
Both Mr Sollecito and Miss Knox maintain their innocence and their retrial is due to begin in Florence at the end of September.
You can watch the full interview on BBC World News on Thursday 5 September at 14:30 and 20:30 GMT and Friday 6 September at 00:30 BST on the BBC News Channel.