ANDREW Garfield was reduced to tears as he sobbed at the grave of his murdered ancestors in Who Do You Think You Are. The hit genealogy series has returned to the BBC with a new batch of eager celebrities hoping to learn the truth about their ancestors. 3 Andrew Garfield was reduced to tears at the memorial site of his murdered ancestors Credit: BBC 3 During his episode of Who Do You Think You Are the actor learned his great-grandfather escaped the Holocaust - but his siblings sadly did not Credit: BBC 3 In emotional scenes he visited a memorial...