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It turned out that the shooters were two computer scientists—one American citizen and one German citizen—who had spent significant time working in Canada and the United States. What piqued the interest of reporters and online observers was their strange background: they were active members of the rationalist community, a niche internet group known for its focus on logic, reason, and sometimes radical views. The fact that these individuals harbored violent intentions, linked to their online beliefs, was both shocking and revealing.