<sod >Oscar Pistorius returned to the witness stand at his murder trial today, answering questions from his defence team about the text messages he sent to his girlfriend Reeva Steenkamp before her death.< eod>< sod > Oscar Pistorius told his murder trial he was "besotted" with Reeva Steenkamp as he returned to the witness stand to answer questions about the text messages they had sent each other before her death.< eod>