(CNN)Oscar Pistorius has been found guilty of the murder of Reeva Steenkamp after South Africa's Supreme Court of Appeal overturned the previous conviction of culpable homicide.
Judge Eric Leach ruled Thursday that the Paralympic gold medalist should have foreseen that his firing of a gun would have killed whoever was behind the door in his bathroom, regardless of whether he thought it was Steenkamp or an intruder. State prosecutors appealed the verdict of culpable homicide, seeking a conviction on more severe charges.
The original court judgment had been "fundamentally flawed," Leach said. Pistorius shot girlfriend Reeva Steenkamp, a model, four times through a locked toilet door on Valentine's Day 2013, saying he mistook her for an intruder.
June Steenkamp, left, mother of Reeva Steenkamp, is comforted during proceedings.
His jail term hasn't been decided, but he faces up to 15 years in prison. In October, Pistorius was allowed to move from prison,where he served a year of his original five-year sentence, to house detention.
Steenkamp's family members were present for Thursday's proceedings, remaining stony-faced throughout but hugging after hearing the verdict.