Third National Guardsman Dies In IHOP Shooting Rampage

Of the eleven victims shot in the rampage, five were National Guard members who were sitting together, all in uniform, in the back of the IHOP. Two of the service members -- a man and a woman -- died earlier on Tuesday.

Police say Sencion  -- who was born in Mexico, but was here in the United States under a U.S. passport -- had no criminal history; his family says, however, he had a history of mental illness.

Police say Sencion first shot a woman in the parking lot of the IHOP with an AK-47 and then entered the restaurant and opened fire; he then went back to the parking lot, crouched down between cars, and shot himself in the head.

Sencion left two more guns in the van --  a rifle and a pistol, authorities said.

While the FBI says it does not believe the shooting was the result of a terrorist plot, because the Guard members were in uniform, investigators say it appears the shooter could have targeted them, Carson City Sheriff Kenny Furlong said Tuesday evening.

The shooting  happened about four miles from the National Guard's state headquarters. April Conway, spokesperson for the Nevada National Guard, says they are deeply saddened by the tragedy and said that security has now been heightened at its facilities.

"The loss of any guardsmen whether it be a soldier or an airman or any person in the military is a loss and we feel it the same no matter what the circumstances under which they died," Conway said. "We did raise our security measures this morning at our guard facilities ... that's not an uncommon procedure but it is standard protocol when something happens with our guard members."