She and her daughter, Katryn Schoon, were killed by letter bomb in June 1984 in an operation carried out by the Security Branch of the South African Police.
[1][3] Shortly after her release, she met Marius Schoon, another banned activist who had recently served a long prison sentence for a sabotage plot under the auspices of Umkhonto we Sizwe.
Schoon's husband later told Hilda Bernstein that the British High Commissioner, in mid-June, personally informed them of an assassination plot and advised them to leave the country.
[5] In the immediate aftermath of the bombing, Terror Lekota of the United Democratic Front told the press that "the black community will assume that the hand of the [South African] government is in this somewhere", a sentiment echoed by the ANC.
[7] In 1995, Craig Williamson, a former agent of the Security Branch of the South African Police, admitted responsibility for the attack in an interview with the Observer.
[9] In April 2014,[10] President Jacob Zuma awarded Schoon the Order of Luthuli in silver for "Her definitive contribution to the fight against apartheid.