A major security effort is expected when the five young Swedes are brought before the Eastern High Court in Copenhagen starting Monday.
The trial is scheduled to last a total of eight days.
Today, the court will be able to take part in the prosecutor's case presentation and then listen to the accused.
According to independent sources, at least one of the younger ones is expected to take greater responsibility for part of the crime.
Childhood friends have turned to each other
The reason is according to a hypothesis that the others should get away more easily.
In any case, this has been indicated before the hearing, but it remains to be seen whether this will be the case during the trial itself.
But the question is whether any new information will have any significance in the debt issue at all because the court in Glostrup in the autumn concluded that they acted in concert, regardless of who fired the shots.
The five accused were all convicted of the two murders and the attempted murder that took place on 25 June 2019 against three people connected to the rival group Shottaz.
The conflict is basically about childhood friends from the Rinkeby area in northwest Stockholm who turned against each other after a conflict over money.
The three oldest, including a designated leader of the high-profile gang known as the Death Patrol, were sentenced to life in prison.
One victim was previously the designated leader's best friend.
The two youngest, two cousins who were both 17 at the time of the crime, were sentenced to 20 years in prison each.
The lawyer questions the sanction
Henrik Dupont Jørgensen, defender of one of the younger convicts, believes that there are strong reasons for the appeal.
He takes as an example that the most severe punishment any Danish minor has previously been sentenced to is eight years' imprisonment.
In addition, with a fixed-term sentence and conditional release for those sentenced to life, they will be released after 12-14 years in prison, the lawyer states.
This corresponds to the punishment the young man he represents risks being allowed to serve, with conditional release included after having served two thirds of the punishment.
- So in practice, someone who was a boy at the time gets as severe a punishment as an adult who is sentenced to life, says the lawyer who questions the punishment.
He does not want to say whether his client has new information to provide, but leaves it to the hearing.
His client reacted with verbal outbursts against the judge, after expecting a significantly shorter sentence.
Both the young man convicted of murder and his co-accused's defender had argued in vain that they in Sweden for similar crimes would have received at most four years of closed youth care in one of the state's special youth homes.
A friend of the two had previously been sentenced to three years in closed youth care after executing a rival who is linked to the Shottaz side in January 2018 inside a pizzeria in Rinkeby in front of several witnesses, including a child.