Nine lives, 10 years later

The skeptic who was there

(Bonnie Jo Mount / WASHINGTON POST)

NINTH IN A SERIES | She was working at the Pentagon on Sept. 11, 2001, the day that things stopped making sense.

Living with ‘if only’

(Bonnie Jo Mount / The Post)

EIGHTH IN A SERIES | A daughter’s small, considerate choice has a profound, unknowable consequence.

The wounded man

(Bonnie Jo Mount)

SEVENTH IN A SERIES | Since Sept. 11, 2001, Don Brennan, a Pentagon police officer, has been unable to forget the wounded man he tried to help.

After loss, working to fill the void

(Bonnie Jo Mount / WASHINGTON POST)

SIXTH IN A SERIES | After Floyd Rasmussen lost his wife Rhonda at the Pentagon on Sept. 11, 2001, he looked for a way to fill the void and ended up finding his current wife, Brenda.

Still feeling at home up in the sky

(Bonnie Jo Mount / Post)

FIFTH IN A SERIES | Flight attendant Dannye Drake-Ivey was supposed to fly on Sept. 11, 2001. Now, 10 years after the attacks, she still lives in the sky.

After 9/11, security guard on high alert

(Bonnie Jo Mount / The Post)

FOURTH IN A SERIES | Chris Stegherr is one of the security guards who was hired after the attacks of Sept. 11, 2001. More than a million guards — double the number in the nation’s workforce a decade ago — are patrolling public spaces.

Brought together by catastrophe

(Bonnie Jo Mount / WASHINGTON POST)

THIRD IN A SERIES | He survived the Sept. 11, 2001 attack on the Pentagon. He never imagined that day of tragedy could be responsible for bringing to him the love of his life.

Twin misses his other half

(Bonnie Jo Mount / WASHINGTON POST)

SECOND IN A SERIES | Inseparable from his twin for 35 years, one man learns how to fill the hole in his life left after the death of his brother in the attack on the Pentagon.

Trying to find the new normal

(Bonnie Jo Mount / WASHINGTON POST)

FIRST IN A SERIES | A wife missing her husband. Children missing their father. They are the survivors of Lt. Cmdr. Otis Vincent Tolbert. And Sept. 11 has defined everything since.