Bill Browder's spellbinding testimony against Putin.
He posts updates, here's his twitter page, https://twitter.com/Billbrowder
(just ignore any twitter login, you can read the page just fine, click anywhere else on the page to make the login disappear)
The official senate video (which is the same but has extra dead time): https://www.judiciary.senate.gov/meetin ... ions-day-2
Podcast with some added details:
Mr. Browder's testimony in UK: