The jailing of "notorious gangster" Meggy Khan, along with the death of his Huddersfield rival Yassar Yaqub, could fuel a new West Yorkshire drugs war, a new TV documentary claims.
The programme also looks at efforts in the county's Pakistani communities to tackle the problem.
The BBC documentary series, 'Hometown: A Killing', sees journalist Mobeen Azhar return to his hometown of Huddersfield to report on the shooting dead of Yassar Yaqub by police on the M62 in 2017.
He soon discovers that Yaqub, initially described as a devoted family man, was also a 'kingpin' of the Huddersfield drugs trade.
The final episode of the six-part series, entitled 'Consequences', looks at the connection between Yaqub and Bradford's Mohammed Nisar Khan, aka 'King Meggy', described by Mr Azhar as "a notorious gangster."
Meggy Khan was jailed for life in May for the murder of Amriz 'Major' Iqbal in Sandford Road, Bradford Moor.
On the night of Yassar Yaqub's death, he had been meeting Meggy at Cafe de Akbar on Leeds Road, Bradford.
In the documentary Mr Azhar says: "From what I've heard, Yassar didn't trust Meggy, who had a fearsome reputation. But they agreed to meet in public to try and resolve a drugs dispute."
The documentary repeats claims heard in a court case earlier this year that Meggy was a police informer, and states that he is rumoured to have tipped off the police after their meeting that Yassar Yaqub had a gun.
He adds: "Of the two kingpins that met that night, one is dead and the other is now serving 26 years at Her Majesty's pleasure. That leaves a vacuum that could fuel a whole new battle over the West Yorkshire drugs trade.
"That means more violence and more misery. It's now more urgent than ever that people inside the [Pakistani] community come together and take this on."
The series concludes with footage of imam and former Bradford councillor Alyas Karmani tackling the issue of drugs at Friday prayers. During the sermon he says: "We know who these people are in our communities. We cover them up. We turn a blind eye at these people who are gangsters out there.
"When a son comes home and they haven't got a job, and they haven't been to university , and they are driving a £50,000 car, why is it that the parents are not saying anything?"
Afterwards he tells Mr Azhar: "We've got a problem. We've got to deal with it, okay? We've got to realise why it's happening and all of us have to take our own personal responsibility. You know, this is a long-overdue conversation."
- The full series of Hometown: A Killing is now available to view on BBC iPlayer.
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