Washington (CNN) -- Air Force Lt. Col. Ken Bourland hugged his wife, Peggy, goodbye and headed out for his two-day mission.





The date was January 12, and the destination was Haiti.





Neither knew it would be the last time they'd see one another.





Upon his arrival in Port-au-Prince, Ken Bourland sent his wife an e-mail saying he had settled into his hotel room.





Ten minutes later, Peggy Bourland and the couple's three sons began watching television back in their suburban Fort Lauderdale, Florida, home. That's when the news broke: Haiti had been struck by a major earthquake.





She describes the panic that set in.





"I sent him another e-mail, you know, 'Please tell me you're OK'," she recounted to CNN. "And, at that point, I didn't get anything back."





The ensuing minutes and hours turned to days of waiting.





"It was painful not knowing," she said. "But not knowing, you still had hope. You still had hope that he could possibly be under there just surviving, just doing everything he could to survive."





Eventually, Peggy Bourland began to fear the worst.





Lt. Col. Ken Bourland worked at the Caribbean desk at the U.S. Southern Command. His job involved helping the Haitian military with security issues concerning both countries, such as combating illicit drug trafficking, uncovering money laundering and distributing humanitarian aid.





Bourland had been to Haiti previously, and this trip was to be a 48-hour mission escorting a new commander to meet his Haitian counterparts.





His e-mail to his wife of five years was titled, "Wow. Haiti."





"He actually had seen what true poverty was. And it was a life-changing experience for him," Peggy Bourland recalled.





"And he said that he wished that my son, Chance, and I could have been there to see it. I could tell from his e-mail he was moved, beyond words, at what he'd seen," she said.





Army Lt. Col. Chris Thomas worked with Ken Bourland at Southern Command. The two traveled to Haiti together and were in their respective rooms at the Hotel Montana when it came crashing down.





"We arrived Tuesday morning, met with the ambassador at the embassy, and got briefings," Thomas told CNN in an interview at Southern Command's headquarters in Miami, Florida.





"Ken and myself then went back to the Hotel Montana, and that was the last time I saw him," Thomas said.





Thomas stayed on the hotel's top story, in a fifth-floor corner room. Ken Bourland's room was on the second floor.





Thomas recalled the horrible events of that afternoon.





"I was standing in the middle of the room, and the building just erupted," he said.





"The room just shook so violently, and the noise was deafening," he said. "I rushed to the door, and the door and the wall fell on top of me. As the building pancaked, I guess I rode it down."





Thomas suffered a broken arm, a separated shoulder and a torn ligament in his knee.





But in the immediate aftermath of the quake, no word from Bourland.





After two weeks, Peggy Bourland was emotionally exhausted from waiting and worrying. She took a military plane to Haiti to stand near where her husband was last seen alive.





"I just felt like, if that was going to be where he took his last breath, that I owed it to him and our kids to be there, to see it, to pray for him," she said.





Once she got back home, she continued to wait for word about her husband's fate.





Eventually, "they called," she said, tearfully recalling the moment when she got the definitive word that her husband had died in the earthquake-ravaged Hotel Montana.





Immediately following
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