CNNOscar Pistorius murder sentence increased to 13 yearsCNN(CNN) A high court in South Africa increased Oscar Pistorius' prison sentence Friday to 13 years and five months for the murder of his girlfriend, Reeva Steenkamp. South Africa's Supreme Court of Appeal issued the ruling after the prosecution appealed ...Oscar Pistorius jail term for killing Reeva Steenkamp more than doubledBBC NewsPistorius' prison sentence increased to 13 years, 5 monthsABC NewsCourt doubles Oscar Pistorius' prison sentenceCBS NewsNew York Times -U.S.