FORT HOOD, Texas -- The Army revealed Friday night that the soldier who opened fire on base fired more than 100 rounds, KPRC Local 2 reported.

Col. John Rossi, the deputy commanding general at Fort Hood also said that, based on the positioning of the bodies and shell casings, "All indications are this was not a friendly fire incident."

Questions have surfaced, due to the sheer number of victims, that police gunfire may have struck some of the victims, but Rossi said all signs point to the gunman finding his mark on all of the victims. He said autopsies should prove that theory in the coming days.

The Army reported that 23 people remain hospitalized, with half in intensive care. Two were released Friday night. Eight of the victims were treated and released within 24 hours of the attack.

Rossi said his officers are now keeping an eye out for any soldiers who ask for counseling or appear that they need it. He said counselors are working to take away the stigma of asking for help. "It's OK to come forward," he said.

Several hundred soldiers and their families gathered for a music-filled candlelight vigil on base Friday night.

Maj. John Zavage attended, saying, "Anytime somebody goes down, everybody rallies around them and picks them up and figures out what we need to do to help them out and move forward and that's what we did tonight.

"It's more surprising, it's more shocking, but it's still a loss of life. It's still your buddy, whether he goes down in combat or he goes down here. He's still your buddy, it still means just as much," said Zavage.

Soldier Micah Yeackley held onto his young daughter during the ceremony and then broke into tears as he said, "It really is a tragedy. You serve with these guys overseas and you just hate to see them lose it this way."

Yeackley said a friend was wounded in the shooting, but he said he was also there for the others.

"Even though you don't know them, they wear the same uniform, they're still part of the same family," Yeackley said.

Others tried to cope with anger. The chaplain told those attending to take a deep breath.

Pfc. Caleb Escamilla said, "(I have) emotions of sadness, of anger toward the man that did this, an outrage on how to avenge the death of those lost, but also a lot of questions as to why this happened to our fellow comrades."

Fort Hood leaders said they have established a grieving center with 24-hour counseling.

The suspected shooter, Maj. Nidal Maliq Hasan, was transferred to Brook Army Medical Center in San Antonio on Friday.

He remained unconscious, under guard.

Rossi said it has been confirmed that the two pistols used in the mass shooting were not issued by the military. He said they were purchased by Hasan in the Killeen area but he did not know when.