South African model Reeva Steenkamp used WhatsApp to text Pistorius less than three weeks before she was shot to death on February 14, 2013.
During the course of the investigation into her death, police downloaded the text messages. Police Capt. Francois Moller testified that 90 percent of the texts were not alarming. However, several texts from Steenkamp portrayed Pistorius as short tempered and jealous.
"I'm scared of you sometimes, of how you snap at me."
"You have picked on me incessantly."
"I was not flirting with anyone today and I feel sick that you suggested that."
"You do everything to throw tantrums... I'm certainly very unhappy and sad."
Pistorius, a former Olympian, has admitted he shot Steenkamp but claims that he mistook her for a burglar in the bathroom of his residence on February 14, 2013.