PRETORIA, South Africa — Oscar Pistorius is a "broken man" after killing girlfriend Reeva Steenkamp and has already suffered emotionally and financially, a psychologist called by the Olympic runner's lawyers testified Monday ahead of his sentencing. Dr. Lore Hartzenberg gave the testimony ahead of Pistorius' sentencing for culpable homicide, and it was almost immediately characterized by the chief prosecutor as lacking balance. Prosecutor Gerrie Nel also expressed shock after a defense witness suggested Pistorius be sentenced to occasional house arrest and community service for shooting dead his girlfriend.