Paralympic and Olympic track star Oscar Pistorius was convicted of culpable homicide last month for the shooting of his girlfriend Reeva Steenkamp on Valentine's Day.<br/> <br />Now he faces up to 15 years in jail.<br/> <br />On the second day of his sentencing hearing, Pistorius's agent Peet Van Zyl was grilled over the athlete's charity work, which the defence hopes will mitigate his sentence.<br/> <br />But lead prosecutor Gerrie Nel suggested that the charity work was not entirely selfless -- but a useful marketing tool for self-promotion.<br/> <br />(SOUNDBITE) (English) LEAD PROSECUTION LAWYER, GERRIE NEL SAYING:<br/> <br />"So the fact is that it is merely an advancement of your career to become involved (in charity work). "<br/> <br />(SOUNDBITE) (English) OSCAR PISTORIUS AGENT, PEET VAN ZYL SAYING:<br/> <br />"I think that a lot of sportsmen actually really want to make a difference and contribute."<br/> <br />(SOUNDBITE) (English) LEAD PROSECUTION LAWYER, GERRIE NEL SAYING:<br/> <br />"But as a bonus, as a flip side -
