He said that Nalyvaichenko was summoned for questioning as a witness to "show, explain and tell where and what he saw exactly; where he sees the evidence he spoke of," Horbatiuk said.
In particular, the PGO explained that according to the documents of SBU ex-Chairman Valentyn Nalyvaichenko, Aide to President of the Russian Federation Vladimir Putin Vladislav Surkov arrived in Ukraine after the activists were shot dead on the Maidan Feb. 20.
"Here is this very letter, which reads that seven representatives of the Russian Federation, including Surkov, arrived in Ukraine February 20, 2014, at 7:15 p.m. It means that they arrived when all the events had already taken place. As you know, the last murder took place on Instytutska Street Feb 20 at 4:45 p.m.," Horbatiuk said.
"If he (Nalyvaichenko - Ed.) continues insisting on his information after all, and the file he has submitted does not contain it, it is also important that he come and tell where the materials which he insists on are. ... The same applies to Nalyvaichenko's statements concerning the involvement of the FSB representatives.
"At the same time, the PGO employees, who are investigating the events on the Maidan, consider all scenarios regarding the possible involvement of certain individuals of various secret services to the events on the Maidan and this information is verified and scrutinized," Serhii Horbatiuk said.