<sod >When the academic failed to return home, his wife, Nadja, went outside to find police had cordoned off the street and the cards her husband had been carrying strewn over the pavement.< eod>< sod > When the academic failed to return home, his wife, Nadja Ensink-Teich, went outside to find police had cordoned off the street and the cards her husband had been carrying strewn over the pavement.< eod>