reporter: it was on the beaches of this south african town a law student aspired to be a model, posing for these amateur snapshots. a few years later she transformed herself into a cover girl. she might have looked different. but she didn t change inside, said a student friend, carrie smith, who took those pictures on the beach about eight years ago. if anything, that s riva in her natural beauty, not a stitch of makeup on, hair blowing in the wind, sunsetting behind her. another from the shoot. reporter: riva was a confident, professional model and ambitious, says garrett barkley who shot these photographs a few months before she was shot dead by her boyfriend, oscar pistorius. pistorius says it was a tragic accident, that he thought she was an intruder.