The two suspects got the same tattoo - the text "In nomine Patris et Filii et Spiritus Sancti" - as the protagonists in the 1999 film Boondock Saints, in which two brothers consider themselves appointed to rid Boston of evil and crime.
The two men referred to the Sundsvall victim in a police interview as "someone considered by many to be evil."
Downloaded copies of Boondock Saints were found in their possession, along with rosaries similar to the ones the killers wear in the film.
The police detail the similarities between the murder and the film in their preliminary investigation report.
They note that the victim, who was shot eight times, was shot with two different guns, a method used in the film, reports Dagbladet.