Valery Alekseyevich Legasov was a Soviet inorganic chemist and a member of the Academy of Sciences of the USSR. He is now mainly remembered for his work as the chief of the commission investigating the Chernobyl disaster.
Chernobyl - Valery Legasov Interview on NBC (1986).
Chernobyl blast: Valery Legasov's battle
CHERNOBYL DISASTER: Valery Legasov's battle, part 1