Nonka Mateva, world rifle champion, said that the gunman who killed Iliya Pavlov was not a professional but an amateur.
The killer shot dead Iliya Pavlov in the heart on Friday night.
Nonka Matova told 24 Hours daily that she didn't have specific information about the investigation. She is a shooting expert and in 1993 helped into the investigation of the murder of the notorious wrestler Stefan Miroslavov - Krushata.
She explained that a professional would never prop up his rifle the way Pavlov's killer did.
For a fourth day in a row, the Bulgarian authorities gather information for the murders of MG Corporation President Iliya Pavlov and Stepan Rubakov, a Moldavian national with Bulgarian citizenship, 39 killed on Saturday.
Officials said that the versions were too many but they had no data about the killers.