"By the millions, people flocked to hear more about the Marker and the unity it promised after Michael Altman told the world of his profound discovery. But there were those who felt threatened by Altman's message. On March 15th 2215, Altman was assassinated, and thus became the first martyr for the Church."
January 1, 1970
https://en.wikiquote.org/wiki/Dead_Space_2