The French police had implicated him in the murder of the former Soviet defector Ignaty Reyss in September 1937 , on a country lane near Lausanne , Switzerland .
Later that year , Efron too had to return to USSR .
The French police had implicated Efron in the murder of the former USSR defector Ignaty Reyss in September 1937 , on a country lane near Lausanne , Switzerland .
Later that year , Efron too had to return to USSR .