Heart disease caused the death of San Francisco 49ers offensive lineman Thomas Herrion after an exhibition game against the Broncos , the Denver medical examiner 's office said yesterday .
Thomas Herrion /people/deceased_person/place_of_death Denver
NNP NN VBD DT NN IN NNP NNP NNPS JJ NN NNP NNP IN DT NN NN IN DT NNS , DT NNP JJ NN POS NN VBD NN .
Thomas Herrion
PERSON
Denver
LOCATION
/people/deceased_person/place_of_death