Glen Doherty, a former Navy SEAL, was working as a security contractor in Libya when a group of militants stormed the Benghazi consulate. NBC's Katy Tur reports.
Updated at 10:27 p.m. ET: Two former Navy SEALs were identified Thursday as the third and fourth victims of the attack on a U.S. consulate in Libya this week that also killed the U.S. ambassador.
U.S. officials and family members identified the men as Glen Doherty, 42, a native of Winchester, Mass., and Tyrone S. Woods, 41. Details of how they died haven't been made public.
The men were working as private security specialists for the U.S. government when militants attacked the U.S. Consulate in Benghazi on Tuesday night. In all, four Americans were killed; the others were previously identified as the U.S. ambassador to Libya, Christopher Stevens, and Sean Smith, an information management officer.
Libyan authorities said Thursday that they had arrested four men in connection with the attack but gave no further details.
In a statement Thursday evening, Secretary of State Hillary Rodham Clinton said Woods was known to his family and friends as "Rone" that and they they relied on "his courage and skill, honed over two decades as a Navy SEAL."
Woods, who was also a registered nurse and certified paramedic, served several tours in Iraq and Afghanistan and had been protecting U.S. diplomatic personnel in dangerous posts from Central America to the Middle East, Clinton said.
He was married to a dentist named Dorothy and had three sons: Tyrone, Jr., Hunter and Kai, who was several months old.
Defense Department records listed Wood's residence as Portland, Ore., but NBC station KNSD of San Diego and numerous other reports from the area said he lived in Imperial Beach, Calif., where he settled after leaving the Navy and for a time owned a pub called the Salty Frog.
His death was confirmed by his ex-wife, Patty So of San Diego, who was notified by the U.S. government.
Doherty — known to friends and family as "Bub," according to Clinton — was described as a highly trained marksman and security expert who "lived life to the fullest." He was also an experienced paramedic.
Katie Quigley, the sister of Glen Doherty, one of the Americans killed in Libya, talks about her brother.
"Glen lived his life to the fullest. He was my brother, but if you asked his friends, he was their brother, as well," his sister, Katie Quigley of Marblehead, Mass., said Thursday.
Doherty joined the Navy in his late 20s after having attended flight school and worked as a ski instructor. A skilled pilot, master marksman and medical corpsman, Doherty was a member of the elite Sea, Air and Land (SEAL) special operations corps for nine years before he left the Navy in 2005.
Kokoro Camp Trainer of Encinitas, Calif., where Doherty worked as a fitness trainer, said that as a civilian, Doherty continued to take assignments in security and intelligence for various U.S. government agencies, serving in Iraq, Lebanon, Pakistan and Afghanistan, as well as Libya.
In Libya, Doherty "was protecting the ambassador and also helping the wounded" when he was killed, Quigley said.
Doherty co-wrote the book "21st Century Sniper: A Complete Practical Guide" with another former SEAL, Brandon Webb, who called him "one of the finest human beings I've ever known."
"He died serving with men he respected, protecting the freedoms we enjoy as Americans and doing something he loved," Webb said.
In 2009, Doherty was featured in an episode of the NBC-TV reality series "The Wanted," in which intelligence and military experts and investigative journalists sought to track down suspected terrorists.
In the episode, Scott Tyler, a fellow former SEAL, endorses Doherty's marksmanship and describes him as "highly recommended from people I trust in my community."
Doherty and other operatives hunted a suspected terrorist in Norway for extradition to Iraq. Doherty devised the surveillance plan, using miniature cameras hidden outside the suspect's home in Oslo.
Security forces faced violent protests in Egypt and Yemen spurred by angry mobs accusing the U.S. of insulting the prophet Muhammad. NBC's Richard Engel reports.
Doherty was interviewed on screen discussing surveillance techniques and the importance of maintaining focus in a dangerous situation.
It's "a good thing to just read all of the people in the neighborhood and just try to be hyperaware of what's happening," he said. "It's not like you see on TV ... You focus on the mission. That's it."
Quigley said the attack on the consulate had to have been extremely violent and well-coordinated, because "Glen was highly trained. He was the best of the best."
"This was serious, well-planned, well-executed," she told NBC station KNSD-TV of San Diego. "He was very good at what he did."
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