The Buk system crossed the border in darkness in the early hours of 17 July 2014.
Although many questions remain about the tragedy, that a surface-to-air missile was used seems beyond dispute at this point.
It was July 17, 2014, that Calehr walked her boys, 19-year-old Shaka and 11-year-old Miguel, as far as Amsterdam airport security would let her.
Stories that, so far, have not withstood the evidence presented by the silent witness of Malaysia Flight 17.
Tragic: Their younger sister Margaux van den Hende, eight, also died in the horrific crash The three Maslin children from Perth; Mo, 12, Evie, ten, and Otis, eight, died with their grandfather as they were returning home after family holiday in Europe.