The U.S. Justice Department now says it's looking into whether the FBI missed red flags in their previous investigations into the man who admitted to killing 49 people inside an Orlando nightclub.
U.S. Attorney General Loretta E. Lynch was in Orlando Tuesday, where she got an update on the federal case.
Lynch said the U.S. Justice Department is working to be as open as possible about the investigation. She said they may one day be open to releasing the 911 calls Mateen made that night. However, Lynch did not offer a timeline.
But still, many questions remain unanswered.
"We're going back over all of our contacts with him," Lynch said at a news conference Tuesday afternoon, "...to determine what we could have done better. It's too early to say. We're looking at all of that."
Law enforcement officers are still working to determine the direction where each bullet went, and more troubling, if any shots from law enforcement officers accidentally killed clubgoers.
"We don't know right now the trajectory of all bullets that we used in the club," Lynch said. "We are still involved in investigating where all the bullets traveled and also how all of the victims died."
She also delivered a pledge to help law enforcement officers and first responders who rushed into Pulse Nightclub to save victims.
The Justice Department is making $1 million in emergency funding available to the Florida Department of Law Enforcement," Lynch said. "The state will be able to apply for funds on behalf of Orlando and other affected jurisdictions to cover overtime costs for state and local responders. We will move quickly to make the award as soon as possible. And we are offering emergency counseling resources to first responders to help them deal with the trauma that they too have experienced."
Lynch also met with some of the first responders and shooting victims.
"I am inspired by the strength and the resilience of the survivors and their loved ones," Lynch said. "And I am deeply moved by the way that this community – and our national community – has stood together in support of one another, in defiance of terror and in defense of our most cherished ideals."
Service providers are on the ground providing crisis counseling and other critical support and the U.S. Justice Department is making federal emergency funds and victim compensation funding available to cover family travel expenses, medical and mental health expenses and other costs related to the tragedy, Lynch said.