The man who has been arrested is, according to the Russian security service FSB, a 29-year-old Uzbek who is said to have been recruited by Ukraine's security service (SBU). In exchange, the man is alleged to have been promised $100,000 (approximately 1.1 million Swedish kronor) and a trip to enable him to settle in Europe, according to information presented by the state-controlled news agency Tass.
It is not known under what circumstances the suspect was interrogated. According to FSB, he risks being sentenced to up to life imprisonment.
Igor Kirillov and a colleague were killed in an explosion near the entrance to Kirillov's residential building in Moscow.
The suspect, according to Russian accounts, traveled to Moscow, picked up an explosive device, placed it on an electric bicycle, and parked it at the entrance to Kirillov's house. He is also said to have rented a car to monitor the location and set up a camera that transmitted images live. When Igor Kirillov was seen leaving the building, the bomb was then detonated remotely.
An official within Ukraine's security service (SBU) stated on Tuesday that the country was behind the deadly attack.
Kirillov was a war criminal and a completely legitimate target, since he gave orders to use prohibited chemical weapons against the Ukrainian military, he said then.
The information has not been verified by independent sources.
