PRETORIA, South Africa —
Pistorius' former coach, Andrea Giannini, said he hopes it was "just a tragic accident." Giannini said he believed that Pistorius had been dating Steenkamp for "a few months."
"No matter how bad the situation was, Oscar always stayed calm and positive," Giannini told the AP in Italy. "Whenever he was tired or nervous he was still extremely nice to people. I never saw him violent."
Yet Pistorius had troubles in his personal life. In February 2009, he crashed a speed boat he was piloting on South Africa's Vaal River. Witnesses said he had been drinking before the crash and officers found alcoholic beverages in the wreckage, though they acknowledged at the time they hadn't conducted a blood test on the athlete. Pistorius broke his nose, jaw and several ribs in the crash, as well as damaged his eye socket and required some 180 stitches to his face.
In November, Pistorius also found himself in an altercation with a local coal mining millionaire over a woman, South African media reported. Eventually, the two men involved the South African Police Service's elite Hawks investigative unit before settling the matter.
Pistorius owned firearms and posted a photograph of himself at a shooting range in November 2011 to the social media website Twitter, bragging about his score.
"Had a 96% headshot over 300m from 50shots! Bam!" he tweeted.
Police said that earlier reports that Steenkamp may have been mistaken for a burglar by Pistorius did not come from the police. Several local media outlets initially reported that the shooting may have been accidental.
Capacity Relations, a talent management firm, earlier named model Steenkamp as the victim of the shooting. Police spokeswoman Lt. Col. Katlego Mogale told the AP that officers received a call around 3 a.m. after the shooting.