He studied at the Kutaisi Real Gymnasium and became involved in the social-democratic movement.
While studying at the Leipzig University, he joined a local Bolshevik group in 1904.
Back to Georgia in 1905, he helped propagate Marxist ideas among the army soldiers stationed in Imereti and Samegrelo.
He was assassinated by a Tsarist police agent in Kutaisi; Rizhinashvili was 20 years of age.
His story is described in a 1936 play by the Georgian Jewish writer Gerzel Baazov.