UPDATE on Assassination of DPR leader
Main story circulating in Kiev is that this may be infighting between Pushilin or another minister in DPR.
It may also be Moscow cleaning house of anyone not willing to follow their instructions.
This is 8/27/18 article about defection of DPR minister to Kiev who was opposition.
Notice the Double Headed Eagle.. the ancient symbol of Ninurta.. carried down through the bloodlines.