A third member of the National Guard -- a woman -- died overnight as a result of injuries she suffered at the hands of a crazed gunman who opened fire in an IHOP restaurant in Carson City, Nevada Tuesday morning.

In all, five people, including the gunman (who took his own life), were killed in the rampage, which also left seven others wounded.

Authorities are now trying to determine whether the gunman -- identified as 32-year-old Carson City resident Eduardo Sencion -- specifically targeted the group of National Guard personnel who were eating breakfast in the restaurant.