from Mauqey Shanas

the  narrator  finally  reveals how  he  used  the  robber"s  presence  and  entry  and  escape  from his  house with  all  the  precious  items  stolen to  kill his  wife  himself , he  had  always  wanted  to get  rid  of her, and  this  was the  right  occasion , a  proper  time  and  chance  to  do  it, shifting  the  entire doubt  on the  robber