William "Wayne" Sinclair has known that a guardian angel saved him when Flight 77 crashed into his office in the Pentagon on Sept. 11. But for weeks, he was haunted because he didn't know who his rescuer was.

Finally, Sinclair, 54, met his angel Monday in the burly person of Isaac Hoopii, an officer in the Pentagon police department's canine bomb detection unit.

The two men shared a long embrace as they looked at each other for the first time. The first time they met, billowing clouds of black smoke kept them from seeing each other, although each had been haunted since that day by the other's voice.

Sinclair, who configures computers for a civilian Army contractor, was crawling around on bloodied hands and knees seconds after the explosion leveled his office on the Pentagon's first floor. Suddenly, a voice in the blackness implored him to "head toward my voice."

Sinclair, and seven colleagues, headed toward the voice, which also promised: "There's an opening out here."

Minutes later, he was gasping fresh air and trying to open his eyes against the sharp sting caused by ash and smoke. When he was able to see, the man whose voice he heard was gone. After three weeks of treatment at Washington Hospital Center for second- and third-degree burns on his arms and legs, as well as some minor injuries, Sinclair returned to his family in Riverdale last week.

He was happy to be home. But he wasn't content.

He was haunted by the voice that had saved his life.

Across town, Hoopii had been working more than 12-hour days since he and his canine partner, Vito, were called into action seconds after the hijacked airliner smashed into the Pentagon. Hoopii was several blocks away in his cruiser when the dispatcher said a plane had hit the Pentagon.

"I thought the communication personnel had misinterpreted something," said Hoopii, 38. "When he came back on and said it again, I knew something terrible had happened."

Hoopii hit the lights and sirens and headed for the Pentagon, blowing his transmission in his haste. At the Pentagon, he joined other Pentagon police officers and others pulling people out of the burning building and carrying them to safety.

He ran through a corridor whose doors had been blown off and carried several people to safety on his massive back. When the smoke and heat became too intense, he depended on his rich baritone voice to pull people out.

On the first floor, firefighters urged rescuers not to try to navigate the area behind the black smoke. Instead, he yelled to the "voices in the dark" who were screaming in fear and pain to follow his voice to fresh air.

"Your adrenaline is pumping so fast because you just want to get in there and help people," said Hoopii, the father of two college students and a 9-year-old daughter. He stands 6 feet 2 and weighs 260 pounds. He recalled carrying a woman who couldn't walk because she was so badly burned. "I touched her arm and the flesh just fell off," he said. He was about to perform CPR on a man when, miraculously, the man opened his eyes, Hoopii said. They ran and carried and called.

"We were all trying to get as many people out as we could."

For weeks, he wasn't sure if his efforts had been in vain. He doesn't know what happened to the man who opened his eyes or the woman with the burns. He has been haunted by thoughts that perhaps he could have done more, saved more lives.

His spirits were lifted Oct. 5 when he learned that a survivor, Sinclair, was looking for a man with a booming voice whom he credited with saving his life. Friends who knew of Hoopii's efforts had called to tell him that he was the angel Sinclair was looking for.

In a tentative telephone conversation, the two men shared enough information to confirm the encounter. No mistaking that voice, Sinclair said, referring to Hoopii's Hawaiian accent.

They met in person on Monday as they prepared to recount their story on NBC's "Today" show.

The two men embraced and fought back tears -- the computer programmer and the bulky Hawaiian, who when not saving lives, sings in a band called the Aloha Boys and teaches children the hula and other Hawaiian traditions.

They plan to get together when Sinclair is stronger and back to work at the Pentagon. And Sinclair invited Hoopii; his wife, Gigi; and their children to the Sinclair family reunion next summer.

Sinclair said saying thank you didn't seem enough. But that was just fine for Hoopii.

"I feel like I've made a friend for life," Hoopii said. "I'm just so happy to know that there were some survivors that day, that we were able to help some people get back to their families."

Programmer Wayne Sinclair sought the man whose voice he followed.

Pentagon police Officer Isaac Hoopii guided Pentagon survivors to safety.