Now the forensic investigators are studying a building close to the crime scene. They suspect the assassin was hiding in one of the apartments there before he or she detonated the bomb, according to Ukraine Today.

Detectives have been verifying several versions of why Sheremet was murdered. The two most probable are his professional activity and a so-called 'Russian trace'.

Read alsoCCTV footage shows female suspect planting explosives under Sheremet’s car (video)As UNIAN reported earlier, a prominent journalist was killed in a car blast in Kyiv center July 20.

See’s video section for more of the latest news from Ukraine in video from Ukraine Today, Ukraine’s 24-hour English-language news channel.