People have killed themselves over true love , said Helen Fisher , an anthropologist at Rutgers University who has written extensively on human love .
Helen Fisher /business/person/company Rutgers University
NNS VBP VBN PRP IN JJ NN , VBD NNP NNP , DT NN IN NNP NNP WP VBZ VBN RB IN JJ NN .
Helen Fisher
PERSON
Rutgers University
ORGANIZATION
/business/person/company