You are right; it is a garbage website.
Once I went through his entire list and web-researched it and found virtually nothing to back it up. Basically, his modus operandi is (1) refer to an undisputed incident in which a prominent Russian journalist, politician, businessman, etc., is killed; (2) allege that Putin must was responsible because said individual was arguably an opponent of Putin’s; (3) ignore the motives of others who may have had a greater interest in silencing the individual, such as Chechen rebels, oligarchs, Russian mafia, etc.; (4 )ignore the outcome of investigations in which other parties were held responsible or other evidence demonstrates Putin was entirely not to blame; (5) disregard the fact that Putin (a smart man whatever you think of him) would have more to lose in furnishing ammunition for his political opponents, domestic and foreign, than he would ever gain by eliminating the individual
Basically, his modus operandi is — I think not only are those his or her websites - I think he / she operates on here under a few aliases since those names self reference the same websites. Jesus Christ, we have someone on here referencing a Chechen jihad website as something worth visiting. That is filthy jihadi in our midst more than likely.