Should This Be Considered A Terrorist Attack?

"Traces of radiation had already been found at the Millennium Hotel, a branch of the Itsu sushi restaurant and the house of Alexander Litvinenko, who died Thursday of polonium-210 poisoning. Two new locations -an office block in London's west end and another address in the neighborhood of Mayfair also showed signs of radioactivity,"

"Someone", is guilty of spreading radioactive crap about London, with the express purpose to kill. To me that's a terrorist attack. Now, who is that "someone"?