Prosecutors claim a gang of 9 other youths knifed the 23 year old and two of his friends, following a disagreement at a party.
The 19 year old was said to be among them, and originally admitted to committing the crime. But no witnesses have come forward, and the murder weapon has not been found. He now claims that he lied in the lower court process, according to Swedish Radio News.
The lower court had previously freed the 19 year old and two others, due to the lack of evidence.