KIEV (Sputnik) — There are a lot of weapons in the country as well as radical elements who have been fighting in eastern Ukraine, Boyko told RIA Novosti, adding that this is the reason for the murders.
"A crackdown on those who oppose the policies of the current government has begun in Ukraine. There are professional killers at work… All this at a time when the authorities have shown an absolute inability to bring the situation under control."
Another Ukrainian journalist, Donetsk-born Serhiy Sukhobok, was also killed last week near his house in Kiev.
These murders are the most recent in a series of suspicious deaths of opponents to the administration of Ukrainian President Petro Poroshenko in recent months. Many of the deaths were put down to suicide triggered by guilt by law enforcement.
On Friday, the Ukrainian parliament will hear from the heads of law enforcement agencies on the recent killings at the request of the opposition, according to Boyko.