Syria has denied involvement , though Syrian intelligence officials , including close family members of President Bashar al-Assad , have been implicated .
Bashar al-Assad /people/person/nationality Syria
NNP VBZ VBN NN , IN JJ NN NNS , VBG JJ NN NNS IN NNP NNP NNP , VBP VBN VBN .
Bashar al-Assad
PERSON
Syria
LOCATION
/people/person/nationality