After the fall of the Soviet Union, Venezuela became the "cash cow" for Cuba. The whole repression system is under Cuban control and sadly Maduro is depending heavily on Havana's advise.
Cuba is not going to let it go so easy and I am afraid that a major bloodbath will be needed for the situation to be corrected. It surprises me that the Armed Forces are not taking control of the situation; once again there is strict Cuban control there.