A Columbia University student from Brooklyn joined ISIS but was soon begging American officials to rescue him.

In October 2014, the FBI received an email from a 25-year-old man from Brooklyn identified by the Washington Post as Mohimanul Alam Bhuiya, now in his late 20s.

He told the agency he had slipped into Syria to join ISIS but had soon become 'fed up with this evil' and wanted out, reports the outlet. Documents of his case were unsealed last month.

Mohimanul Alam Bhuiya, above, was 25 in 2014 when he wrote an email to the FBI begging them to rescue him from ISIS, which he had joined voluntarily

'I am an American who’s trying to get back home from Syria,' he wrote, according to government documents. 'I just want to get back home. All I want is this extraction, complete exoneration thereafter, and have everything back to normal with me and my family... Please help me get home... I am fed up with this evil.'

As the FBI was trying to verify his identity, he managed to escape and slip into Turkey. From there, he made it back to the US, where he was promptly arrested and charged with providing material support and receiving military training from the Islamic State.

In 2014, he pleaded guilty to both counts. His sentencing is today and he faces up to 25 years in prison, according to Red State.

The former Columbia University student could have had a bright future ahead of him until he decided to travel to Syria to join up with the terrorist group

The Washington Post reports that the man's name was redacted in court documents because it was 'necessary to protect the integrity of the ongoing government investigations and the safety of the defendant and his family.'

Before he joined the terrorist organization, Bhuiya appeared to have a bright future ahead of him.

He attended Columbia University School of General Studies for one semester from January to May 2013. He did not receive a degree after dropping out. He began to drive a taxi.

Mohimanul Alam Bhuiya grew up in Brooklyn (above his parents' house) and went to John Dewey High School

In his Brooklyn high school, John Dewey High School, he wrote an essay for the school newspaper, saying, 'I always wanted to become someone extraordinary and unbelievable, someone people would ponder and admire, just as I admired Superman and Batman.'

He went on to praise everyone from Albert Einstein to President Franklin D. Roosevelt to Winston Churchill to Frank Sinatra to his teachers. He concluded it with 'I want to be a superhero.'

In June 2014, the FBI learned that he was planning to visit Syria, but when authorities interviewed him at his home in Brooklyn, he told them he was interested in 'rebel groups' but had no money to get there.

However, days later, he went anyway, and soon was in Syria, embedded with ISIS fighters, but begging them not to send him to the front lines.

According to an NBC interview he gave in May using the name Mo, he said he told them he didn't want to fight, but could be useful in other ways. He said he was appalled by the 'bloodthirst' of the fighters who were bragging about being terrorists and getting slave girls.

'It was just not the Islam I grew up with,' he said.

Mohimanul Alam Bhuiya wrote an essay for his high school newsletter saying he wanted to be a 'superhero' - above, where he grew up in Brooklyn

Soon, he was trying to figure out a way to escape the 'dystopia' of ISIS.

'You could see madness in their eyes,' he said.

He somehow made it to a US outpost in Turkey without a passport, which ISIS had confiscated, and from there to the US, where he was apprehended.