Interesting link to an Atlantic Council profile:
Here's the short version:
"The new “deputy prime minister for state security” in the separatists’ self-declared republic is Lieutenant General Vladimir Antyufeyev, 63, a longtime Russian police and special operations commander who since at least 1991 has been a key leader of violent campaigns by Moscow to dominate Latvia, Moldova, and Georgia. From 1992 to 2012, Antyufeyev headed the KGB, and all security operations, within Transnistria, the impoverished and isolated proto-state that Russia props up in Moldova."
Here is today's map of the security situation in eastern Ukraine, according to the National Security and Defense Council (CLICK TO ENLARGE):