According to the police, it was a neighbor who had sounded the alarm.
Forensic scientists were called to the scene and the police have begun a preliminary investigation into suspected murder.
- The technicians' assessment, after examining the crime scene, was that the cause of death could not be proven.
Sometimes you have to wait and see what the autopsy shows.
Until we know the opposite, we must treat it like a murder, says Björn Öberg, the police's press spokesperson.
The home is cordoned off and the man's relatives have been notified.