What happened
Peter Lundin killed his partner Marianne Pedersen and her two sons in Denmark in 2000 after having previously served a sentence in the United States for killing his mother.
The investigation
The disappearance of the family led police to examine the home and Lundin’s movements. Physical evidence contradicted claims that the victims had simply left.
What the courts or investigators concluded
Lundin was convicted of all three Danish murders and sentenced to life imprisonment.
Why the case remains significant
His case generated debate about risk assessment and supervision because authorities and the public knew of his earlier homicide before the later killings occurred.
Case context
Crime by Region organizes cases geographically so readers can move from one file to other investigations from the same country. For unresolved or contested cases, the wording above reflects the distinction between confirmed events, investigative theories and findings actually established in court.