The father of Norwegian killer Anders Behring Breivik wants to meet his son to make him realise what he's done.
Behring Breivik killed 77 people in a bombing in Oslo and a shooting spree on the island of Utoeya, on 22 July.
Jens Breivik, 76, is a retired diplomat who lives in the south of France.
"I want to look him in the eyes. Perhaps I am in a position to arouse feelings in him," he told the German magazine Stern in comments published in German.
Mr and Mrs Breivik divorced when their son was one year old.
Mr Breivik said his son is the worst terrorist since World War II and is not even showing remorse.
Now in custody at a high-security prison near Oslo, Behring Breivik, 32, is scheduled to go on trial on 16 April. He has been classified as having paranoid schizophrenia.