Ropata: Grand Deception: The Truth About Bill Browder, the Magnitsky Act and Anti-Russian Sanctions by Alex Krainer | Goodreads Make sure to read both books.

When the gangster Al Capone went on trail for tax evasion, the star witness was Fred Ries, ex-cash handler for Capone’s illegal gambling houses. Both were bad people.

Michael Cohen is a self-admitted fixer who served as an attorney for U.S. president Donald Trump from 2006 to 2018. He's the star witness against Trump's grand jury possible criminal conviction. Both are bad people.

Putin is a psychopath, and deserved to be demonized. The closer you are to Putin, the more likely you are to be a bad person.

The film "The Magnitsky Act – Behind the Scenes" is probably more balanced.

Guardian:

"The film to be shown at the Newseum, called "The Magnitsky Act – Behind the Scenes", was shot by Russian-born film-maker Andrei Nekrasov...

It had been scheduled to premiere at the European Parliament on the 27 April, but the showing was cancelled following complaints from Magnitsky’s relatives and former colleagues, as well as objections from European lawmakers.

Petras Austrevicius, a Lithuanian member of the European Parliament who also serves on the Foreign Affairs Committee, said the push to screen the film for the chamber was one of several moves 'by the Russian authorities' in order 'to weaken western confidence in its policy line” and secure a review of EU sanctions against Russia later this year.'
...
Nekrasov has produced several films highly critical of Russian president Vladimir Putin. He was a friend of former Russian Federal Security Service officer Aleksandr Litvinenko, who was killed by a radioactive substance in London in 2006. His 2007 documentary about that case premiered at the Cannes film festival and was shown in Moscow at the Sakharov human rights organisation."