Bianca Warburton – Educational Psychology Intern (2009) Educational Psychology Intern (University of Witwatersrand). Assistant (sic) in the Ububele Umdlezane Parent Infant Project. A 24-year-old woman, believed to be an intern social worker, was shot dead in an attempted hijacking in Alexandra on Wednesday, Johannesburg police said. Blonde-haired Bianca Warburton had stopped her car at a stop street...