Following the attack on Parubiy, Ukraine's law enforcement officers launched a
manhunt for the suspect, codenamed "Siren", aimed to track down and arrest the perpetrator. Stselnikov was arrested within 36 hours of the shooting. His actions were classified as intentional murder and illegal handling of a weapon under the Criminal Code of Ukraine. The head of
Lviv Oblast police, Oleksandr Shliakhovskyi, said that the attack was "carefully planned" and that the perpetrator "prepared it very thoroughly". The head of the National Police of Ukraine,
Ivan Vyhivskyi, said that the case had a Russian footprint. During an interrogation, the suspect stated that he had been in contact with Russia on the search for his son, who had served in the
Armed Forces of Ukraine and disappeared on the
Bakhmut front.
5 Kanal reported that the Russian special services blackmailed the suspect with information about the location of his son's body, while
Vysokyy zamok reported that the Russians offered the body in exchange for the assassination of any known Ukrainian politician. During his initial court appearance, the suspect admitted to the killing but denied acting on behalf of Russia. He explained the targeting of Parubiy by his proximity and said the killing was an act of "personal revenge on the Ukrainian authorities" following the death of his son at the front. He also expressed willingness to be included in a prisoner exchange with Russia in order to search for his son's body. The court ordered that Stselnikov remain detained for 60 days, justifying the decision by detailing that he fled the scene, burned his clothes and disassembled his bicycle in a forest, reached the
Kolodiivka village near the border of Ukraine, and was told via
Telegram to await further instructions to aid his escape. The authorities have found the suspected murder weapon, a
silenced Makarov pistol with traces of the assassin's
DNA. Both Parubiy's father and former Deputy
Prosecutor General of Ukraine,
Gyunduz Mamedov, believed that Russia was behind the killing, as Moscow considered him responsible for deaths during the
2014 Odesa clashes. == Reactions==