The phrase "and a mastermind of" is correct and usable in written English.
It can be used to describe someone who is exceptionally skilled or clever in a particular area or field.
Example: "She is not only a talented artist but also a mastermind of innovative design."
Alternatives: "and a genius of" or "and an expert in".
Mr. Londoño, 52, who uses the aliases Timochenko and Timoleón Jiménez, is considered one of the FARC's leading intelligence operatives and a mastermind of its cocaine trafficking activities.
He said there was a possibility Mr. Patek could be charged under the anti-terrorism law with assisting Dulmatin, a fugitive Jemaah Islamiyah militant and a mastermind of the Bali attacks who was killed by Indonesian police in 2010.
But the ISI has shared intelligence with Lashkar and provided protection for it, the officials said, and investigators are focusing on one Lashkar leader they believe is a main liaison with the spy service and a mastermind of the attacks.
The BBC's Aleem Maqbool in Islamabad says releasing one of the founders of the Taliban and a mastermind of the Afghan insurgency would seem a counter-productive step for the Kabul government and the US-led coalition.
The prisoners included the founders of Hamas's armed wing and militants who kidnapped and killed Israeli soldiers and civilians; a mastermind of the 2001 bombing of a Jerusalem pizzeria that killed 15 people; and a woman who lured a lovesick Israeli teenager to a Palestinian city and had him murdered.
Mr. Stevens has emerged from indie rock as a mastermind of extravaganzas, and all the better if they're laced with fond irony.
The first day in court, the former minister of information, Ali Fallahian, whom Baghi and Ganji had accused of being a mastermind of the serial killings, sat in the gallery smiling at Baghi.
Yet Lagerfeld, a mastermind of brand identity, is careful to frame Fendi as an Italian house.
