Denis Voronenkov was a former Russian lawmaker. He was also a critic of Russian President Vladimir Putin. And he was assassinated in broad daylight on Thursday in the Ukrainian capital, Kiev. Ukraine's leaders are pointing the finger at Russia.
Perhaps 1 million Ukrainians have settled in Russia since the conflict in Ukraine began in 2014. President Vladimir Putin promised that Russian-speaking Ukrainians would be welcome. But it was largely an empty gesture.
Ukraine has one of the fastest-growing HIV/AIDS epidemics in the world. One of the main reasons: intravenous drug use. But just outside the capital Kiev, a group is working with police to change their approach toward drug users — to treat addiction as an illness, not a crime.
The Soviets used to just shoot stray dogs dead. Now, after animal rights campaigning, a Ukrainian city captures, sterilizes and releases dogs back on the street — with tags on their ears. But Ukrainians are still getting bit.
NATO says a Russian invasion of Ukraine is "highly probable." The Ukrainian government says a large convoy of humanitarian aid coming from Russia is just a "Trojan horse." If the humanitarian crisis is indeed a pretext for an invasion, it certainly wouldn't be Moscow's first time.
The psychological game "Mafia" pits a well-connected minority against a civilian majority. It was invented in the Soviet Union as sort of spoof of KGB thinking, but it has gone global. The Russian government uses it to train spies, and would-be entrepreneurs around the world play it to practice their negotiating skills.
When Russia moved into Crimea last year, even NATO admits it was caught off-guard. But now a top NATO general says the West is alert to Putin's plans, and is developing its own moves to stop him from expanding any further.
It's a disturbing time for Jews in Europe right now. But the conflict in Ukraine seems to be making that country a little more welcoming to its Jewish citizens, even as they continue leaving the country in large numbers.
Ukraine has been fighting Russia and pro-Russian rebels in its eastern provinces for months, leaving hundreds of captives on both sides. But just before the new year, the two sides exchanged prisoners in the largest swap deal of the war, including one Ukrainian soldier who already wants to get back to war.
The Eurovision competition isn't supposed to be about politics. But it often creeps in. And this year's entry from Ukraine, about the Soviet deportation of Crimean Tatars in 1944, has Russia crying foul.