Disturbing.
Munich killer David Ali Sonboly bought the gun used in his rampage on the dark web and had been planning the attack for a year.
German police said the Glock 17 pistol used by the 18-year-old to kill nine people had its serial number scratched off but appeared to have originated in Slovakia and had been reactivated.
Police confirmed Sonboly had lured his victims to a shopping centre McDonalds using a fake Facebook account but said the victims — most of them teenagers — were not classmates of the gunman.
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