Too much, Rygorych, too much
Riot police are on duty near the house of the executed Kovalev; people are not allowed to lay flowers and memorial candles. Too quickly, with the destruction of all evidence, Luka shot two men. Here is one of two things: either the case fell apart, or the guys realized that they were simply screwed, and wanted to open their mouths wider with a fascinating story about who, when and under what circumstances persuaded them to go for the bombing, if it was them at all.