Law enforcement officials apprehended the leader of a street gang in Chicago Thursday after discovering the Islamic convert, who became radicalized in prison, was conspiring with Islamic State militants in Syria.

According to a 27-page criminal complaint and affidavit unsealed Friday in U.S. District Court in Chicago, Jason Brown, also known as “Abul Ja’Me,” was busted after attempting to providing $1500 to ISIS.

Intent on providing money to jihadists, Brown gave “$500 in cash to an individual on three separate occasions this year, with the understanding that the money would be wired to an ISIS soldier engaged in active combat in Syria,” court documents state.

However, Brown was the target of an undercover FBI sting.

“Unbeknownst to Brown, the individual to whom he provided the money was confidentially working with law enforcement, and the purported ISIS fighter was actually an undercover law enforcement officer,” the Justice Department states in a press release issued Friday.

Brown, a 37-year-old leader of the AHK gang, can be heard on FBI recordings praising ISIS and celebrating beheadings.

When infidels criticize Prophet Mohammed, “his head gotta go,” he allegedly proclaimed, according to court documents.

Brown also aspired to travel to ISIS controlled territory, law enforcement officials assert.

Prosecutors warn AHK is a radical Islamic gang which requires all members to convert to Islam. Its former members Black P-Stone, Gangster Disciples, and Four Corner Hustlers converted to Islam.

The jihadist gang leader is charged with attempting to provide material support and resources to a foreign terrorist organization and faces a maximum sentence of 20 years in prison. He is slated to appear in court Nov. 21.

Brown was previously incarcerated on a gun conviction when he became a radicalized adherent of Islam and Islamic scholar. According to the complaint, his primary objective is to galvanize Muslims to fight infidels, or non-Muslims.  

When he was released from prison in 2018, he called on gang recruiters to join and support ISIS.

Police also arrested seven other alleged members of the AHK gang on federal drug charges on Thursday, the Department of Justice reports.

“As part of the investigation, law enforcement shut down the gang’s operation of two illicit drug markets on the West Side of Chicago and executed search warrants at numerous locations,” the DOJ announced.

The assailants were “charged with conspiracy to possess a fentanyl analogue, heroin, and cocaine with the intent to distribute.”

Chicago, a city with one of the highest homicide rates in the country, has previously been plagued by street gangs linked to terrorists.

Jeff Fort, former gang leader of El Rukn, was convicted in 1987 of plotting acts of domestic terrorism in exchange for $2.5 million from Libya. Fort, now 72, is currently serving an 80-year sentence in the supermax federal prison in Florence, Colorado.