In his small Silicon Valley office, Salem Khan covered his face with his hands and sobbed deeply.
He was crying about his 24-year-old son, Jaffrey, a troubled young man who had struggled in school and in life. Khan long feared his child would one day do something terrible — and now he had.
He had joined ISIS.
With his wife and 18-year-old brother-in-law in tow, Jaffrey left behind the moneyed, manicured precincts of the Bay Area and offered his services to one of the most savage terrorist organizations in the world.
RELATED: The Americans: 15 who left the United States to join ISIS
The father tried to suggest his son was impressionable, a lost soul, an easy mark for bloodthirsty fanatics selling the fantasy of an Islamic caliphate.
“He was gullible,” Salem Khan said. “You know the people looking to scam you out of money or something? They’re looking for people like him.”
Khan lives in a $2 million house and runs a medical marketing company in Palo Alto, in the shadow of elite Stanford University — 7,000 miles and a world away from where this story began, in southern Turkey.
That’s where, in March, we met a man who claimed to be an ISIS defector. He called himself Abu Mohammed and gave NBC News a thumb drive that he said he stole from an ISIS commander and smuggled out in a baby’s diaper.
It contained the personnel files of thousands of foreign fighters who joined ISIS in 2013 and 2014, including names, some home addresses, emergency contacts and whether they wanted to be suicide bombers. Experts at the West Point Combating Terrorism Center and other counterterrorism specialists verified the files are authentic.
Through the documents, NBC News has identified at least 15 U.S. citizens or residents who went overseas and joined ISIS. Some were already known as recruits; other names have never been made public before.
Over the course of two months, NBC News pieced together the story of a single cell with three members.
Jaffrey Khan and Rasel Raihan enlisted with ISIS on July 11, 2014, the documents show. Though she is not in the files, they were joined by Zakia Nasrin, now 24, who is Rasel’s older sister and Jaffrey’s wife — and who is now the mother of a 10-month-old baby girl, according to relatives.
Their story stretches from the middle-class suburbs of Ohio and the silicon jewel of California to the Syrian capital of the so-called “Islamic State.”
It’s the story of a high-school valedictorian who wanted to be a doctor, of a studious computer gamer who had Harvard in his sights, and of a pot-smoking hip-hop fan who traded in atheism for extremism.
And it’s the story of two immigrant families who built new lives in America only to have the heirs to their dream join an organization hell-bent on destroying it.
The Khan family said in a statement that Jaffrey’s actions have been “heartbreaking for our family and we do not support his personal choices.”
Rasel and Zakia’s father, Mohammad Mannan, told NBC News, he feels he doesn’t have children any longer.
“They are lost,” he said.
The misfit
“He was always a problem kid,” Salem Khan said of Jaffrey, his first-born son.
As a one-year-old, the boy had trouble walking, and his difficulties seemed only to grow from there. He was diagnosed with attention-deficit disorder and took Ritalin, his father said. “He could never concentrate for more than 10 minutes on anything.”
School was an ordeal, marred by disruptive behavior and even physical incidents, a source familiar with his disciplinary record told NBC News. Educational records show Jaffrey attended two different middle schools then shuttled between Gunn High School and an alternative program, sometimes transferring mid-year.
His father said he ended up in a group home at one point, and didn’t continue onto college after leaving high school in 2010.
In the affluent, competitive landscape of Palo Alto, Jaffrey just “never fit in” like his popular younger sister, one Gunn classmate said.
“He always struck me as a slightly disturbed person, sort of bullying and disruptive. Not in a class clown way, but that there was something wrong with him,” said another school acquaintance, Nate Levine.
Jaffrey’s parents, Pakistani immigrants, divorced when he was young, and he was mainly raised by his father, who remarried and had two more children. His mother, who also remarried and had four more children, lives 90 minutes northeast of Palo Alto. During weekend visits with her, Jaffrey grew close to a cousin, Ahmed Khan.
As teens, they played basketball together and stayed up late watching movies. Jaffrey was a jokester who was into rap music, smoked pot and could spend hours on the Internet, Ahmed said.
The cousin thought Jaffrey was a “good kid” but unmoored. Ahmed felt the Muslim faith could ground Jaffrey, but he showed no interest.
“He wasn’t religious at all,” Ahmed said. “He was an atheist, actually, at that time.” According to his father, Jaffrey had dabbled in Mormonism and Hinduism —and his full-throttle embrace of a radical form of Islam came as a shock to the family.
It was his mother’s husband who got him to convert in earnest, Ahmed said. Jaffrey, who often seemed to go overboard with new interests, underwent a rapid transformation in the months after leaving high school.
“He became really religious. He grew his beard out,” Ahmed said. “He started sleeping on the floor. He said, ‘I’m not gonna use a bed no more because our prophet Mohammed, didn’t use a bed.’ He would eat with his hands and not use forks and spoons.”
He began doing online research into conflicts in the Muslim world “and that’s when he started changing,” Ahmed said. “He was getting angry…He would be really aggressive.”
Ahmed believes Jaffrey was “brainwashed” by his Internet contacts. His attitude became “more hateful” toward Americans, he said.
“He’d say that we live in a country with non-believers. And he said we’re surrounded by a bunch of sinful people and we should move to a Muslim country,” Ahmed recalled. “[He was] always talking about fighting and ‘We have to kill these non-Muslim people, they’re raping our women and killing our people.’ Those kind of things.”
As his fanaticism deepened, Jaffrey grew more distant from his Americanized relatives, they said. But he would not be alone for long. Through a Muslim dating service, he was searching for a wife.
The over-achiever
In a 2009 local news article about a student farm project, Zakia Nasrin spoke about her plans for a career in medicine — and her hope of making the world a better place.
“I’m really interested in sustainable agriculture because as a doctor, I’d be focused on third-world countries and this could really apply,” she said.
At the time of the interview, she was a senior at the selective and rigorous Metro Early College High School in Columbus, where classmates remembered her as intelligent and thoughtful, fully capable of handling a curriculum that included university classes.
“She was probably one of the smartest and most functioning people in the school, and that was a pretty high standard,” Zach Brazik told NBC News.
Zakia and her younger brother, Rasel, had moved to Ohio from Bangladesh in 2000. The family eventually bought a $162,000 house in Reynoldsburg, a middle-class community just outside Columbus.
Their hard-working parents — the father works two jobs, including nights at a gas station — placed a premium on academic achievement. And Zakia delivered.
At Metro, she was one of just four students chosen to take part in the innovative student farm program at Ohio State. A video shows her working with the crops in a T-shirt and leggings, talking in a soft voice about the marvel of a harvest.
She graduated from Metro with a perfect 4.0 average and was named one of 26 valedictorians in the Class of 2010. After a cancer-research internship that summer, she was supposed to start at Ohio State.
Instead, she seemed to drop out of sight. Her best friend from high school, Meagan Jones, became so worried when Zakia suddenly cut off contact that she reached out to her parents in late 2010. Jones was bewildered to learn that Zakia had left Ohio for California and married Jaffrey Khan.
The gamer
Throughout childhood, Rasel Raihan had seen his big sister Zakia as his mentor — “guiding me right from wrong,” as he once wrote a friend. When she moved to the West Coast in 2010, just as he was about to start high school, he felt abandoned, he wrote.
Following in her footsteps, he enrolled at Metro, where he fell in with a small crew of self-described “nerds” whose idea of delinquency was slacking off on homework to play computer fantasy games.
“He was a genius – really, really smart,” said one of his pals, Sam Knisely.
“He was basically the student that everyone should aspire to be,” said another friend, Phil Chu. “He wanted to be a doctor. He wanted to help people.”
When he wasn’t hitting the books and getting straight A’s, Rasel was playing computer games. For a while, the crew’s favorite was a role-playing anime world called Elsword Online. Rasel chose a sword-fighter as his avatar.
“He definitely wanted to be the cool, mysterious character,” Chu laughed.
Rasel figured out a way to game the game – and the success he and his friends had after that did not go unnoticed by the moderators, who curtly informed them they had been caught cheating and banned them.
Chu remembers it well because it was around that time in 2013 that Rasel, then a junior, began to withdraw socially. “He just started talking less and less,” Chu said. “He stopped appearing online. He stopped seeing me after school, seeing any of us.”
Rasel would later tell Chu in an online chat that he was rocked by getting a B in physics and overwhelmed by friends who leaned on him for academic help.
“Maybe the dark nature of anime and manga had something to do with it, but I gave up all hope on humans,” he would explain. “All they care about is themselves. And I’m working to become a doctor and save these ungrateful scum? Forget it.”
By his senior year, he was “a shell of the old Rasel,” Knisely said. Chu, who was already in college, heard that Rasel — once so proud of a letter from Harvard inviting him to apply — was cutting classes.
That fall, Rasel failed his chemistry midterm and was plunged into a deep depression, he would tell Chu. “I was at my all-time low,” he wrote. “I seriously contemplated suicide.” But, he added, “I decided it wouldn’t be fair for me to ‘run away’ and have others clean up my mess.”
He stopped going to school and started sleeping 12 hours a night. Things boiled over during finals week, when he finally “came clean” about his emotional issues.
He was referred to a psychiatrist who put him on the antidepressant Lexapro, he would later tell Chu. But he “wasn’t satisfied” with this solution and decided to seek out answers from someone else: his sister Zakia.
The marriage
By the time of Rasel’s crisis in 2013, his sister had been married to Jaffrey Khan for three years. While she didn’t seem particularly religious to those who knew her at Metro, there was no question about her post-matrimonial zeal.
In high school, Zakia didn’t cover her head. But after her marriage, she wore a full face veil and Jaffrey kept her away from all men, even relatives.
“He never showed her,” Ahmed Khan recalled. “When he would come over, she’d stay in a car or she’d stay in the living room and he’d make all the men of the family go in the room so we wouldn’t see her. So I didn’t know how she looked, anything about her.”
The couple eventually returned to Ohio “to be close to Zakia’s parents,” Jaffrey’s father, Salem, said.
He said he didn’t approve of their fundamentalist lifestyle, but he supported them financially, allowing both to work remotely for his company. An online business profile for the firm lists Zakia as an employee in 2012.
Zakia was enrolled at Ohio State in the fall of 2012 as a junior, university records show. She and Jaffrey rented an apartment in a small complex on Riverview Avenue in Columbus, according to a lease obtained by NBC News.









