Authorities in Carson City, Nev., are still searching for a motive in Tuesday's shooting rampage at an International House of Pancakes (IHOP) in that state.

Five people, including three members of the National Guard, were killed in the attack before the lone gunman identified as Eduardo Sencion shot himself. He also wounded seven others, according to authorities.

Police said that just before 9 a.m., Sencion, 32, pulled up in a van in the parking lot of the IHOP and opened fire before heading into the restaurant toward a table of five uniformed Guardsmen and shooting each one - fatally wounding three of them.

The New York Times reported that Carson City sheriff Ken Furlong identified the three dead Guardsmen as Maj. Heath Kelly, 35, of Reno, Nev.; Sgt. First Class Christian Riege, 38, of Carson City; and Sgt. First Class Miranda McElhiney, 31, of Reno.

The other two Guard members were still in the hospital, but have non-life threatening injuries, said Maj. April Conway, a National Guard spokeswoman, to The New York Times.

The dead also included a 67-year-woman - Florence Donovan-Gunderson, of South Lake Tahoe, Calif., about 30 miles to the southwest - who was dining with her husband, who was also shot but survived, according to The New York Times.