As for the attrocities I meant the Maduro (and current) government in general. There are currently over 1000 political prisoners in the country, a mix of protesters, politicians, reporters, etc. A lot of them have been tortured and many have died in custody. Most of the sources from NGO are in Spanish but the Wikipedia is a good start, specially the section about the Maduro government [1]
If you check the news right now you'll see that only in the past month about 50 have been released. There's a huge effort in the country right now to get the hundreds of others out.
Ultimately, what I want to say is that while we can express disdain for the US government we can do the same for the Venezuelan one, even if they claim to be against each other. Maduro and his gang are not the victims here, they've oppressed the Venezuelan people for 27 years, let's not give them an easy out