Hi OP, not discouraging other answers here, but FYI, there have been several interesting threads on Guevara, so you can get started on some of these

• I came across a few allegations against Che Guevara this morning but couldn't find any valid sources. - contains some discussion, but follow at least the first link to this thread with answers by /u/ainrialai:

• Was it the truth behind the critical controversy surrounding Che Guevara? Was Che a murderer, a homophobe, and racist who needs to be viewed much more critically?

• Che Guevara is a hero to some and a villain to others. What factors have influenced such widely differing perspectives of Che Guevara?

If you have follow-up questions for any of the commenters in these threads, since they've been archived now, you can ask here: just tag the user's username to notify them.