I knew a lot about Castro as a murderous dictator 'way back in 1962. He sent two-man hit teams to Mexico City to find and kill former members of his a revolutionary army who defected when they saw Castro begin to murder his many opponents.
One of my good customers was one of the targets of the hit teams. He knew they were going to come after him and when the stupidly rang his doorbell late one night, he opened the door firing his 45. The perps were both killed and the Mexican police simply looked the other way. My friend was not charged.
Nobody wanted to stop this guy or he wouldn't have lasted so long. I blame the US.