[TOMT] [Music] A song in memorial to two wrongly convicted Russian (?) men

It's quite a famous song and the tune has been stuck in my head all day. I think the men were Russian and convicted in the U.S. but I'm not 100% sure. Sorry I don't really have that much to go on but I last heard it a while ago.

The song is pretty old and the men that it's remembering were killed in the 60's maybe, but again that could be wrong. The only lyrics I can recall is "...we will remember..." However I do know that these men were world famous at the time and there were protest in major cities in the U.S. and Europe