Background
Kettunen was born in Saint St. Petersburg, where he worked in the steel industry.
Kettunen was born in Saint St. Petersburg, where he worked in the steel industry.
He was already active in underground movements from 1905. In 1920 he became the steward of the Finnish Communist Party"s military organization. Kettunen is buried in the Field of Mars in Saint St. Petersburg and his name of found in grave of August Communists.
Kettunen was also an active member of the Russian Social Democratic Labour Party from 1906. Kettunen was one of the victims of the Kuusinen Club Incident in Saint St. Petersburg in 1920 when radical Finnish communists killed eight members of the Communist Party in a power struggle.