Oscar Pistorius will undergo a mental illness evaluation.<br/> <br />That was the order on Wednesday from a High Court judge in South Africa, where the Olympic track star is on trial for murder.<br/> <br />The move could determine whether Pistorius lacked "criminal capacity" when he shot dead his girlfriend on Valentine's Day last year.<br/> <br />Pistorius's uncle told reporters the family welcomes the decision.<br/> <br />(SOUNDBITE) (English) OSCAR PISTORIUS' UNCLE, ARNOLD PISTORIUS, SAYING:<br/> <br />"As a family, we are comforted by the thoroughness and detail of this judgment, and Judge Masipa's commitment, using every avenue to ensure a fair trial, it's about a fair trial. It reaffirms our confidence in the South African justice system."<br/> <br />The prosecution asked for the mental evaluation after a psychiatrist told the court on Monday that Pistorius suffered from an anxiety disorder.<br/> <br />Prosecutor Gerrie Nel argued he didn't want to see Pistorius appeal a conviction later on the basis of mental ill
