The poisoning of Alexei Navalny (2020)

The second one! The first one was in 2019, but this one is more serious, the German government said tests confirmed it unequivocally that it was Novichok, which was also recently used in Sergei Skripal (2018-03-04, Серге́й Ви́кторович Скрипáль).

He was forcibly kept in Russia for a few days to make the poison effect undetectable before they allowed him to be flown to Berlin.

Several policemen prevented family access to him while in Russia.

First doctors told family he was poisoned, but then soon after they changed their minds to some random excuse.

Poison effects consistent with cholinesterase inhibitors, but the exact substance was not identified in tests.

Navalny hospital sitting
Figure 317. Photo published on Navalny's Twitter on 2020-09-15 of him sitting awake in a hospital bed in Germany with his family. Source.