Ukraine is searching for the gunman who shot dead former parliament speaker Andriy Parubiy in the western city of Lviv. President Volodymyr Zelensky called the killing a terrible murder and said all necessary forces were being deployed, while prosecutors confirmed that the politician died at the scene. Authorities have launched a special operation, codenamed Siren, to track down the suspect.

The BBC’s report says the shooting happened in broad daylight and appears to have been carefully planned. Unverified footage of the attack suggests the killer was dressed like a courier, approached Parubiy on the street, raised a weapon and fled. Police said the gunman fired about eight shots from a firearm that has not yet been identified. Investigators later found seven shell casings at the scene, and law-enforcement sources told the BBC the attacker may have been using a yellow delivery bag and an e-bike to blend in with the city’s street traffic.

The detail that the suspect may have been disguised as a delivery worker is important because it suggests the attack was designed to look ordinary right up to the moment of the shooting. Lviv police chief Oleksandr Shliakhovskyi said the attack seemed very carefully planned, and the city’s chief prosecutor said investigators were exploring all possible motives, including potential Russian involvement. At this stage, the report does not establish who was responsible. It does show that the authorities are treating the case as a targeted political killing rather than a spontaneous street crime.

Parubiy’s political history helps explain why the killing has reverberated so strongly in Ukraine. He rose to prominence during the Euromaidan protests that helped bring down pro-Russian president Viktor Yanukovych in 2014. During that period he organized and coordinated the Maidan self-defence units that guarded the tent camp in Kyiv, and he was injured several times in clashes with riot police. After Yanukovych was ousted, he became secretary of the National Security and Defence Council during a period of Russian-backed separatist fighting and the annexation of Crimea.

He remained active after Russia’s full-scale invasion in 2022, joining territorial defence and continuing as a lawmaker in the current parliament. That background explains why senior Ukrainian officials described him in such strong terms. Foreign minister Andrii Sybiha called him a patriot and statesman who contributed enormously to Ukraine’s freedom and sovereignty, while former president Petro Poroshenko said the killing was like a shot at the heart of Ukraine.

The investigation now has to answer the practical questions: who planned the attack, how the gunman moved, whether any accomplices helped him and what motive sits behind the killing. For now, the only clear conclusion from the evidence is that one of the most recognizable figures from Ukraine’s post-2014 political order has been assassinated in a strike that authorities believe was deliberate, professional and meant to send a message.

The assassination also raises questions about security in a city far from the front line. Lviv is not the war zone of eastern Ukraine, but the attack shows how vulnerable prominent figures remain even in the west of the country. The manhunt now becomes a test of Ukraine’s investigative capacity and of its ability to protect political figures who symbolize the post-2014 order. Until the shooter is identified, the killing will continue to hang over both domestic politics and the wider war.