But June Steenkamp said the paralympian walked straight past her, and appeared not to notice her.
"I wanted to see him and him to see me," she told ITV News. "But he didn't look at me or anything. He just walked straight and looked ahead."
The grieving 67-year-old lives in Port Elizabeth and travelled to South Africa's capital especially for the first day of proceedings.
"The whole point was he must see me, that I'm there," she said. "I'm her mother and you know, what happened to her was terrible. And I wanted him to see me there, that I am there representing Reeva."
June said that hearing evidence about her daughter's death was "very traumatic, very hard".
"I tried to keep strong. There was one occasion where I didn't and I had a little breakdown, you know where they were talking about Reeva, what she went through and how she was traumatised.
"You can imagine. She's locked herself in the toilet and she's been shot and she's in pain… I wish I could have been there to protect her.
"That's my child that I gave birth to and it's hard for me that she's dead, that she's gone. That was the time I broke down."
Reeva's mother have previously said that she would only attend the first day of the trial because she "could not bear" hearing graphic evidence about how her child died. "I couldn't go through that every day," she said. "We just want to know the truth."
June told ITV that her husband Barry had suffered a stroke last month because of the "stress" of what had happened, and did not attend the trial because of his health.
"He is devastated," she said. "He can't deal with it anymore. It's just too much for him."
In an extraordinary show of compassion, June said that she has forgiven Oscar for killing her daughter.
"I'm not a person who hates another person," she said. "One has to forgive otherwise I will sit with all that anger and I don't want it to burn me up. One has to forgive. We'll never forget."