<P> Glock pistols were used in the following crimes: </P> <Ul> <Li> 1991 Luby's shooting - Glock 17 </Li> <Li> 2002 Erfurt school massacre - Glock 17C </Li> <Li> 2007 Virginia Tech shooting - Glock 19 </Li> <Li> 2011 Norway attacks - Glock 34 </Li> <Li> 2016 Munich shooting - Glock 17 </Li> </Ul> <Li> 1991 Luby's shooting - Glock 17 </Li> <Li> 2002 Erfurt school massacre - Glock 17C </Li>

When did glock 21 gen 4 come out