The deaths in Odessa were a deliberate massacre perpetrated by Nazis. This cannot be denied.

https://www.europereloaded.com/eight-years-ago-the-may-2014-odessa-massacre-how-neo-nazi-thugs-supported-by-kiev-regime-killed-odessa-inhabitants-photographic-evidence/

https://ukraine-human-rights.org/odessa-ukraine-right-sector-and-maidan-activists-murder-at-least-43-persons/

https://www.reuters.com/article/us-ukraine-crisis-odessa-fire-idUSBREA410RP20140502

https://www.nbcnews.com/storyline/ukraine-crisis/russia-blames-west-odessa-carnage-ukraine-warns-its-war-n96236

Forty-two people were killed and 125 injured when riots between pro- and anti-Russian groups in the southern coastal city ended in gunfights and a horrifying fire, police said.

There was never a real investigation:

https://www.hrw.org/news/2014/05/08/ukraine-investigate-odessa-deaths

Laws:

https://www.reuters.com/article/us-ukraine-parliament-language-idUSKCN1S111N

https://www.wsws.org/en/articles/2023/04/06/fidb-a06.html

War crimes:

https://www.osce.org/files/f/documents/b/2/540581.pdf

https://www.veteranstoday.com/2022/04/18/what-ukrainians-did-to-ukrainians-atrocities-by-nationalist-tornado-battalion-videos-english-titles-18/