Five Sri Lankan Tamils were jailed for between 11 and 14 years by an Oslo Court which found them guilty of the August 2007 killings, attempted murder and terrorizing the Tamil community in Kalbakken, Oslo.

The Norway News said the Five political motivated youth were involved in a terrifying Gunfire and Samurai sword attack on 20-year-old Ramanan Vivekananthan in Kalbakken in August 2007. During the attack they had attempted to behead the victim. 

The group involved in the attack consisted of around 10 men, who travelled from France and Germany to the Kalbakken area, specifically to attack the Ramanan. They had been armed with samurai swords, pickaxe handles, guns and other weapons.

Once in Oslo they had ambushed a group of six men in the Kalbakken, area.

Ramanan was struck on the head and body by a Gunshots, and when he fell to the ground two of the gang going by the names ‘Jaffna ganger’ and ‘Psycho’ attacked him with swords in an attempt to behead him.

While the five were found guilty of murder, five others were convicted with bodily under particularly aggravating circumstances resulting in fatality.The incident was a culmination of an almost two-year-old conflict between two rival gangs in the Tamil community in Oslo.

Several of the accused had been brought down from abroad as "reinforcements."

The Court’s ruled that "the murder was of the 19-year-old boy was carried out in a brutal and ruthless manner using particularly dangerous weapons.

Six of the Norwegian Tamils convicted by court described themselves as "Friends".

Part of the backdrop for murder was a stabbing on Pleasant Cafe in Groruddalen in February 2005, and a subsequent episode of violence at a birthday party in Drammen in April the same year. There were episodes in the car park at Stovner football field in May 2006, at a Tamil cultural event in May 2007 and at the Kjenn school on Romerike in June 2007.

Several of the gang "summoned" from abroad were referred to by the Tamils in Norway as members of a gang called "Jaffna bad boys", something they themselves refused to accept.

Some of the foreigners fled from Norway after the murder and were later arrested abroad at the request of the Oslo police.