Students and pro soccer players paint ceramic butterflies together to commemorate victims from Westphalia, where team is based, as part of The Butterfly Project education program

Prosecutors say suspect assembled arsenal of explosives and weapons in his home in country's west in order to kill 'teachers and a larger number of pupils'

Laura Kam commissioned Dortmund memorial after spending years researching history of her maternal great-grandparents, who died in the Holocaust

Move is a 'clear sign of the return of our people to a community that the Nazis thought they had destroyed forever,' says local rabbi

13,000 to be forced to vacate homes and hospitals in Dortmund after local authorities identify suspected unexploded bombs in city center

Artists cover slogans in Dortmund with colorful images in move sanctioned by city authorities and police after project was commissioned by civil society group