Psychologist says Pistorius 'not able to testify'

 Disgraced Paralympic athlete Oscar Pistorius is suffering from depression, anxiety and stress and is not able to testify at his sentencing for murdering his girlfriend, a psychologist told a South African court on Monday.

 "He appeared to have limited energy... he displayed signs and reported symptoms of post-traumatic stress disorder, anxiety disorder and depressive disorder," Jonathan Scholtz said, after interviewing Pistorius.

"Currently he is not able to testify. His condition is severe."