In March 2009 , a similar gun rampage had occurred in nearby Winnenden , when teenage gunman Tim Kretschmer killed twelve people at his former school before killing three civilians and then committing suicide in Wendlingen . The incident triggered off a debate in Germany on tougher gun ownership laws . On 16 September 2010 – only three days before the Lörrach rampage – the boy 's father had to appear in court on a charge of failure to securely store his gun
a similar gun rampage
Winnenden school shooting
2010 Lörrach hospital shooting