Without them, this nutcase might have carried out a mass shooting or something.
To own a semi-automatic 9mm Glock pistol like the kind used in the Munich shootings, a citizen would have had to have been over 18, waited a year for his licence and undergone a psychological evaluation.
He owned it illegally, however. So, like, he’s in BIG trouble with the law now.
Der Deutsch-Iraner nutzte für seine Tat eine 9mm Glock-Pistole. Diese habe der 18-Jährige offenbar illegal besessen, da die Seriennummer der Waffe ausgefeilt war, sagte der Präsident des bayerischen Landeskriminalamts, Robert Heimberger. Eine Erlaubnis für die Waffe besaß der Täter nicht.
PS: We all know what the reaction would have been if this had taken place in Kansas City, folks: Stricter gun control laws would have prevented it. It’s all quite irrational, really.

Weell, he’s dead now, so it it ain’t gonna worry him.
Another one bites the Frust! This time in Ansbach. Oh, don´t forget, he probably wanted to hurt no one, only wanted to commit suicide.
http://www.zeit.de/gesellschaft/zeitgeschehen/2016-07/ansbach-explosion-sprengstoff
Read an article that the Munich shooter obtained his Glock pistol from the “Dark Net.” I guess this virtual dark net will procure a 9mm pistol for you with a filed serial number. Over here, we would call it a mob gun.