Lotte Hammer & Søren Hammer 
The Hanging [EPUB ebook] 

On a cold Monday morning before school begins, two children make a gruesome discovery. Hanging from the roof of the school gymnasium are the bodies of five naked and heavily disfigured men. Detective Chief Superintendent Konrad Simonsen and his team from the Murder Squad in Copenhagen are called in to investigate this horrific case — the men hanging in a geometric pattern; the scene so closely resembling a public execution. When the identities of the five victims and the disturbing link between them is leaked to the press, the sinister motivation behind the killings quickly becomes apparent to the police. Up against a building internet campaign and even members of his own team, Simonsen finds that he must battle public opinion and vigilante groups in his mission to catch the killers.
A nerve-wrenching look at justice and retribution,
The Hanging is a spectacular crime tale straight from the heart of Scandinavia.