Army Chaplain Col. Frank Jackson said life at Fort Hood must go on.

The mass shooting that took 13 lives at Fort Hood Thursday is still under investigation by the Army Criminal Investigation Command at Fort Hood.

"We are collecting additional evidence, conducting bullet trajectory testing and continuing our interviews. We are following every possible lead, to ensure an accurate account of what transpired," Army Criminal Investigative Command spokesman Chris Grey said.

At a Sunday morning press conference, Fort Hood spokesman Col. John Rossi said 16 victims remain in the hospital, seven of whom are in ICU and nine in wards.

		WATCH THE VIDEO
	Investigation News 8's Chie Saito gives us an update on what investigators told the public Saturday. Search for Answers Saito was in Fort Hood Sunday morning with the latest on the investigation. Sunday Update Col. John Rossi addresses the public and the media Sunday.

Col. Rossi said the suspect, Maj. Nidal Malik Hasan, is off ventilators, and in critical, but stable condition. He did not say if Hasan is talking to investigators.

The investigation, made up of more than a half dozen local, state and federal agencies, has a lot of information to process.

"To date we have conducted 170 witness interviews and have collected valuable evidence and information that we feel is critical to this investigation," Grey said.

At this time they are sure of one thing.

"All evidence indicates one shooter who allegedly acted alone in the actual shooting," Grey said. "If any evidence comes to light that contradicts that, we will pursue it aggressively and immediately."

With the investigation moving forward, Army Chaplain Col. Frank Jackson said so must life at Fort Hood.

"At this point the message is to acknowledge the grief and to acknowledge the sadness, to acknowledge the trauma," Jackson said.

	Resources and Information
• View a complete list of the names of those who lost their lives in the mass shooting at Fort Hood. • Make a public donation to help the victims and their families. • Fort Hood is also seeking assistance from those at the scene of the shootings Thursday. • For the Family Hotline, call (254) 288-7570 or (866) 836-2751.

He said doing so will help with the next step in the grieving process.

"We need to encourage one another to help bind up the wounds and allow the healing to take place," he said.

In an effort to move on, but not forget the soldiers and victims who lost their life, there will be a memorial ceremony held at Fort Hood on Tuesday.

President Barack Obama and First Lady Michelle Obama are expected to attend.