A message is circulating in russian crypto groups, that two more developers were arrested: Roman Panchenko in Seattle, and Nikita Dementyev in Tallinn.
(I can't verify the veracity of this report, but if true, this looks like it was a coordinated international police operation)
Roman Panchenko, interesting.. he also lives in Amsterdam according to LinkedIn. Also, both the names you mention, their Instagrams have both been taken offline.
(I can't verify the veracity of this report, but if true, this looks like it was a coordinated international police operation)