In October 1996, Larsen was charged with two attacks carried out during the Nordic Biker War, in which the Bandidos conflicted with the Hells Angels; the attempted murder of Hells Angels member Jørn "Jønke" Nielsen, who was targeted with a machine gun in his cell at Jyderup State Prison on 25 July 1996, and a rocket attack on the Hells Angels' clubhouse in Ydre Nørrebro, Copenhagen on 6 October 1996, which killed two people and injured nineteen. He was remanded in custody on 24 October 1996 after his fingerprints were found on a submachine gun that was discarded by the assailants in Fælledparken following the rocket attack. However, after four months in custody, he was released and both charges were dropped due to a lack of evidence. Another Bandidos member, Niels Poulsen, was convicted of carrying out the rocket attack and was sentenced to life in prison at the High Court of Eastern Denmark on 13 March 1998.