The police have previously said that they have a fairly clear picture of the sequence of events.
"We need to get some extra answers to be as precise as possible, even though we don't have any suspects alive. We want a little more, and we should be able to present that to the relatives," says police officer Andersson.
It was on Christmas Day that a 55-year-old mother was murdered and her two teenage daughters were injured. The suspected perpetrator was shot dead at the scene by police in an emergency situation.
