The Saudi student who killed three and wounded eight at Pensacola Naval Air Station in Florida hosted a dinner party earlier in the week where he and three others watched videos of mass shootings, according to the Associated Press.

One of the three students who attended the dinner party videotaped outside the building while the shooting was taking place at Naval Air Station Pensacola on Friday, said the U.S. official, who spoke on condition of anonymity after being briefed by federal authorities. Two other Saudi students watched from a car, the official said.

The officials also told the AP that 10 Saudis were being held on the base while “several others were unaccounted for.

The victims included a recent graduate of the United States Naval Academy.

Family members on Saturday identified one of the victims as a 23-year-old recent graduate of the U.S. Naval Academy who alerted first responders to where the shooter was even after he had been shot several times.

“Joshua Kaleb Watson saved countless lives today with his own,” Adam Watson wrote on Facebook. “He died a hero and we are beyond proud but there is a hole in our hearts that can never be filled.”

The Pensacola News Journal spoke with one of the victims.

The gunman approached the door. He did not open it.

He opened fire, shooting out the glass and spraying bullets inside the office, where Ryan Blackwell and two colleagues took cover after hearing gunshots down the hall.

It lasted 15 seconds. Maybe 20. Then the gunman moved on, Blackwell, 27, recalled Saturday from the Baptist Hospital intensive care unit in Pensacola.

Blackwell was one of the eight people wounded at the Naval Air Station Pensacola, where a Saudi man opened fire at about 6:30 a.m. Friday. Three others were killed, as was the gunman, who authorities have identified as Mohammed Saeed Alshamrani, a Saudi military member who was training at the base.

Blackwell, a Navy airman and assistant high school wrestling coach, was shot in his right arm and in his pelvis. His intestines were severed by ricocheting bullets, he said.

Blackwell said he shielded a female colleague with his body. All three of the office workers, all Navy airmen, were shot.