Fredrik grew up with physical and mental abuse in the home. He says that his home conditions combined with his criminal life made him violent and aggressive.

- I was an expert on oppression and mentally abusive, he says.

Abuse problems common among violent men

During the time of the crime against his partner, "Fredrik" was already criminally charged and he also had substance abuse problems - which proved to be common among the men who are suspected, prosecuted and sentenced in this type of crime. He says he took to violence to communicate what he wanted to his partner.

- You kick, bite and pull your hair. Sometimes it was enough with a look and it became quiet, he says.

Almost 10 years ago, he was convicted of gross violation of women's rights. He acknowledged the crime and now believes that he would never resort to violence against a woman again.