It’s like a reverse nightmare situation. When you go to sleep normally, you have a nightmare and you wake up and ‘Oh! Everything’s ok.’ And now I go to sleep – I might have a nice dream – and then I wake up and slowly the truth of what happens dawns on me. And that is that my son was a mass murderer.

It’s like a reverse nightmare situation. When you go to sleep normally, you have a nightmare and you wake up and ‘Oh! Everything’s ok.’ And now I go to sleep - I might have a nice dream - and then I wake up and slowly the truth of what happens dawns on me. And that is that my son was a mass murderer.