The processofeachtherapeuticorfollow-upinterview wasrecordedby colorvideo camerasandhighsensitiveaudio recordingsystem. Meanwhile a self-designed scale was usedforfeedback.
He did show a video of an interview his team conducted and recorded with England from jail, in which the suspect described the trauma of watching first his father and then, nearly two years later, his girlfriend being shot dead a few feet away from him.