Arklöv is already serving a life sentence for the murder of two policemen in 1999. The new conviction will be weighed in when he is considered for parole.
Arklöv was serving with a Croatian militia when the crimes took place. He confessed to six charges from the outset, and gave partial admissions to a further two crimes during the trial.
The Swede was sentenced to eight years in jail in 1995 by the Bosnian Supreme Court in Sarajevo. He was released and returned to Sweden as part of a prisoner exchange after serving sixteen months. Swedish authorities immediately launched an investigation, but this was quickly abandoned, only being resurrected in 2004.
Swedish prosecutors launched the case against Arklöv in the summer. While it is not usually possible to charge someone twice for the same crime, this was ruled possible in Arklöv's case because he had not served his sentence.
Arklöv has renounced his previous neo-Nazi ideology while in prison.