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.

Nevada IHOP Shootout
The body of a shooting victim covered with a sheet lies on the front lawn of an IHOP restaurant in Carson City, Nevada, as Douglas County Sheriffs secure the crime scene September 6, 2011. A gunman opened fire at the restaurant on Tuesday, killing three people and wounding at least six others before turning the gun on himself, authorities said. Two of those killed and three of those wounded were Nevada National Guard members in uniform, authorities said. Reuters
Nevada IHOP Shootout
Law enforcement officers and National Guard members in uniform stand at the shooting scene at an IHOP restaurant in Carson City, Nevada September 6, 2011. A gunman opened fire at the restaurant on Tuesday, killing three people and wounding at least six others before turning the gun on himself, authorities said. Two of those killed and three of those wounded were Nevada National Guard members in uniform, authorities said. Reuters
Nevada IHOP Shootout
The body of a shooting victim covered with a sheet lies on the front lawn of an IHOP restaurant in Carson City, Nevada as a Douglas County Sheriff deputy stands guard at the crime scene September 6, 2011. A gunman opened fire at the restaurant on Tuesday, killing three people and wounding at least six others before turning the gun on himself, authorities said. Two of those killed and three of those wounded were Nevada National Guard members in uniform, authorities said. Reuters
Nevada IHOP Shootout
An H&R Block tax office window damaged by a gunman's shots is pictured in Carson City, Nevada September 6, 2011. The same gunman opened fire at an IHOP restaurant in Carson City, Nevada on Tuesday, killing three people and wounding at least six others before turning the gun on himself, authorities said. Two of those killed and three of those wounded were Nevada National Guard members in uniform, authorities said. Reuters
Nevada IHOP Shootout
Eduardo Sencion is pictured in this driver's license photograph released by the Carson City Nevada Sheriff's Office September 6, 2011. Sencion, 32, has been identified as the gunman in the IHOP restaurant shooting in Carson City, Nevada on September 6, 2011. Sencion opened fire at the restaurant, killing three people and wounding nine others before fatally shooting himself, police said. Two of those killed and three of the wounded at the pancake house on the city's main thoroughfare were uniformed Nevada National Guard members, police and the National Guard said. Reuters
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