Johannesburg ( CNN ) -- The family of Olympian Oscar Pistorius said Monday they are `` shaken '' by the `` graphic images '' leaked to the media last week that purportedly show the blood-spattered bathroom where the double amputee track star fatally shot his girlfriend in February . `` It has always been our plea that the legal process be allowed its run its course with integrity , '' the Pistorius family said in a statement . `` The leaking of evidential material into the public domain , before the court case , does not advance this process . '' The statement comes a day before Pistorius is due to appear in court where prosecutors are expected to ask magistrates to postpone the case pending further investigations . Pistorius , 26 , is charged with killing girlfriend Reeva Steenkamp in the early hours of February 14 . The graphic photos of the crime scene were published by Sky News on Friday and show a trail of blood leading from a bathroom ; blood on the walls , stairs and a couch inside the house , and a Valentine 's Day card with `` Ozzy '' -- Steenkamp 's nickname for Pistorius -- written on it . The photo of the bathroom shows a toilet covered in blood , a door with a missing panel and what appear to be two police-marked bullet holes below the level of the door 's handle . CNN has not been able to independently confirm the authenticity of the photos , and police spokesman Brigadiere Phuti Setati declined to comment on how Sky News obtained the pictures . Pistorius , known as the `` Blade Runner '' for competing on carbon fiber blades fitted to his amputated legs , has said he thought there was an intruder in the house . Afraid of being attacked , he ran on his stumps to the bathroom , where he shot through the door from a relatively low angle four times . It was only upon returning to his bedroom , Pistorius says , that he realized Steenkamp was not in bed and that she had been the one in the bathroom . The state alleges it was premeditated murder : Pistorius had an argument with Steenkamp then put on his prosthetic legs , walked to the bathroom and shot through the door from a relatively higher angle , intentionally killing her . His uncle told CNN last week that Pistorius is a broken man over the incident and described his nephew 's grief as `` unthinkable . '' `` What can you say if the person you love the most dies , and you were the instrument ? How would you feel ? It 's unthinkable , '' Arnold Pistorius said . His family said Monday they `` fully stand behind Oscar . '' `` We believe in him , love him and will support him every step of the way in what lies ahead , '' the statement said . CNN 's Nick Thompson and Robyn Curnow contributed to this report .
Olympian Oscar Pistorius is due in court Tuesday . Family : `` The leaking of evidential material '' does not advance the legal process . Pistorius is charged in the killing of his girlfriend . Photos released last week purportedly show the bloodied bathroom where she died .