A Russian deputy attorney general, who is thought to have directed Russian attorney Natalia Veselnitskaya in her efforts abroad on behalf of Russia's government, reportedly died Wednesday night in a helicopter crash.

The Daily Beast reported that Saak Albertovich Karapetyan was aboard an unauthorized helicopter flight, which crashed near the village of Vonyshevo, outside of Moscow.

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Karapetyan was reportedly behind Veselnitskaya's global efforts to lobby lawmakers to overturn anti-corruption acts such as the U.S. Magnitsky Act, which passed in 2012. The U.S. legislation is similar to others around the world which commemorate Sergei Magnitsky, a lawyer who died while trying to expose a $230 million fraud scheme in Russia. The acts have reportedly incensed Russian President Vladimir Putin. 

The Daily Beast reported that Karapetyan signed a letter sent on behalf of Russia's government to a U.S. court in 2014 refusing assistance into an investigation concerning Magnitsky's death. The letter was drafted reportedly with aid from Veselnitskaya.

Two years later, Veselnitskaya was involved in a meeting with President TrumpDonald John TrumpNew EPA rule would expand Trump officials' powers to reject FOIA requests Democratic senator introduces bill to ban gun silencers Democrats: Ex-Commerce aide said Ross asked him to examine adding census citizenship question MORE's son, Donald Trump Jr.Donald (Don) John TrumpDemocrats seek to ban federal spending at Trump businesses Republicans, Trump Jr. signal support for embattled West Virginia governor The Hill's Morning Report — US strikes approved against Iran pulled back MORE, his son-in-law Jared KushnerJared Corey KushnerTrump puts the cart before the horse in Palestine Negotiators face major obstacles to meeting July border deadline GOP launches 'WinRed' online fundraising site in response to Democrats' small-donor advantage MORE and former Trump campaign chairman Paul ManafortPaul John ManafortREAD: Hannity, Manafort messages released by judge Manafort, Hannity talk Trump, Mueller in previously undisclosed messages FBI, warned early and often that Manafort file might be fake, used it anyway MORE at Trump Tower. The meeting, which occurred during the 2016 presidential election, was reportedly set up under the presumption that Veselnitskaya would present damaging information on Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonBiden to debate for first time as front-runner Top Trump ally says potential Amash presidential bid could be problematic in Michigan Chaotic Trump transition leaks: Debates must tackle how Democrats will govern differently MORE to the Trump campaign.

Trump Jr. has maintained publicly that the meeting was a "waste of time," stating that the meeting was focused on Russian adoption policy.

Veselnitskaya, however, has said publicly that the two discussed the Magnitsky Act during the meeting, alleging that Trump Jr. pledged to look into the issue after his father assumed office.

“[I]f we come to power, we can return to this issue and think what to do about it. I understand our side may have messed up, but it'll take a long time to get to the bottom of it," she recalled Trump Jr. saying, speaking in an interview with Bloomberg News.

The meeting has come under intense scrutiny in special counsel Robert MuellerRobert (Bob) Swan MuellerKamala Harris says her Justice Dept would have 'no choice' but to prosecute Trump for obstruction Dem committees win new powers to investigate Trump Schiff says Intel panel will hold 'series' of hearings on Mueller report MORE's ongoing investigation, which is seeking to determine if members of then-candidate Trump's campaign knowingly colluded with Russia to interfere in the 2016 election.

Trump Jr. and other members of his father's campaign and administration have repeatedly denied having any ties to Russia during the election.