Authorities have been investigating the murder since 2007 when new evidence surfaced, and have largely managed to reconstruct the events of the day of the murder.
The investigation revealed that a group of German soldiers stormed the house in early August 1944. Robert Einstein was not to be found, but his wife and daughters, aged 18 and 27, were seized. They were accused of spying and then murdered.
According to investigators, one young soldier from the group distanced himself from his comrades and went to a separate part of the house. Police are searching for him in the hopes he is still alive and can reveal the identity of the officers in charge for the murder.
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