Ukraine

Here's a summary from Wikipedia about those events.

Sternenko was the target of three assassination attempts.[7] In 2018, he became visible in the media after the third attempt. It is believed that the "manhunt" was organized by supporters of pro-Russian groups and their sympathizers. During the incident, one of the two attackers died and the second fled abroad.[8]

In 2015, Sternenko's house in Odesa was searched. The activist voluntarily handed to law enforcement officials his air gun, a collectible knife, and a noise pistol. Serhii Shcherbych had accused Sternenko of his alleged abduction, alleging that Sternenko wanted to steal ₴300 (about US$11).[27] Sternenko denied ever having met Shcherbych; according to court proceedings other members of Right Sector did.[28] Shcherbych was a deputy of the Lyman Raion Council for the pro-Russian Rodina party who was accused of organising so-called titushky (criminal gangs hired to beat up anti-government protesters).[28]

https://en.m.wikipedia.org/wiki/Serhii_Sternenko

Right Sector has been described as a right-wing[9][25] or far right[10] nationalist[7][26][27] political party and movement.[28][29][30] Right Sector was the second-most mentioned political group in Russian media during the first half of 2014, and Russian state TV depicted it as neo-Nazi.[10][31] In March 2014, Associated Press declared that it has found no evidence that the group had committed hate crimes.[27]

https://en.m.wikipedia.org/wiki/Right_Sector

In early 2014, there were clashes between rival groups of protestors in the Ukrainian city of Odesa, during the pro-Russian unrest that followed the Ukrainian Revolution.[21][22] The street clashes were between pro-revolution ('pro-Maidan') protesters and anti-revolution ('anti-Maidan'), pro-Russian protesters. Violence erupted on 2 May, when a 'United Ukraine' rally of about 2,000 was attacked by about 300 pro-Russian separatists.[23] Stones, petrol bombs and gunfire were exchanged. A pro-Russian gunman shot dead a pro-Ukraine protester.[24] Another pro-Ukraine activist and four pro-Russia activists were shot dead in the clashes.[25][26][27][28] The pro-Ukraine group then moved to dismantle a pro-Russian protest camp in Kulykove Pole, causing some pro-Russian activists to barricade themselves in the nearby Trade Unions House. Shots were fired from the building at the pro-Ukraine group,[24] and the pro-Ukrainians attempted to storm the building, which caught fire as the two groups threw petrol bombs at each other.[29][30][31]

https://en.m.wikipedia.org/wiki/2014_Odesa_clashes