Wayne derman
Pistorius defence expected to close case
Court may adjourn for between 4 to 6 weeks and return for closing arguments.
Derman has made references to Pistorius's state of mind on the day he shot Reeva Steenkamp.
Prof Wayne Derman says Pistorius's disability plays a crucial part in his reaction to danger.
Wayne Derman insists the athlete’s behaviour is consistent with the “fight-or-flight” response.