WASHINGTON -- Newly released video sheds light on the October ambush that killed four Fort Bragg soldiers in Niger.

The video provides new details on how Sgt. La David Johnson died.

His fate captured national attention when it was revealed his body was missing for hours after the ambush.

Video from an overhead drone shows Johnson was separated from his unit and tried to get to a safe position.

ISIS operatives killed him and Nigerian forces recovered his body from under a tree 48 hours later.

Also killed in the ambush were Staff Sgt. Dustin Wright, Staff Sgt. Jeremiah Johnson and Staff Sgt. Bryan Black.

The Pentagon released its findings last week.

"The report and its exhibits contain more than 6,300 pages of evidence, as a result I can say with confidence that no one has a better grasp of what happened than the members of my team,” said Maj. Gen. Roger Cloutier Jr.

Officials say they found a lack of training and preparation contributed to the deadly ambush.

The military believes the men knew they were going to be killed.

They even wrote short messages to loved ones on personal devices, knowing that they would soon be attacked.

Soliders killed
These images provided by the U.S. Army show, from left, Staff Sgt. Bryan C. Black, 35, of Puyallup, Wash.; Staff Sgt. Jeremiah W. Johnson, 39, of Springboro, Ohio; Sgt. La David Johnson of Miami Gardens, Fla.; and Staff Sgt. Dustin M. Wright, 29, of Lyons, Ga. (U.S. Army via AP)

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