Investigating officer Hilton Botha said: "I believe he [Pistorius] knew she [Reeva Steenkamp] was in the bathroom".
Oscar Pistorius has his head bowed as he sits slumped in the dock.
More top news
Hanako died peacefully in a Tokyo zoo after living alone for 67 years.
A hearing found Kirsten Treasure guilty of 'shocking' catalogue of misconduct, including refusing to respond to a manslaughter crime scene.
Showers continue across some southern and western areas tonight.