Sergei Filin, 43, was approaching his home around midnight Thursday when the unidentified attacker flung the concentrated acid at him, causing severe burns to his face, the state-run news agency RIA Novosti reported Friday.

CNN: STORY HIGHLIGHTS

The operators of the plant are also being prosecuted over a leak of concentrated nitric acid on 11 March last year, which injured two employees.

BBC: Sellafield: We're safe

Walking through his lab a decade ago, he had an epiphany: He envisioned an entire process by which he could feed corn sugar to lactobacilli that would exude ideal, highly concentrated lactic acid.

FORBES: Shucking Petroleum

Police said they had determined that Zarutsky had purchased acid at an auto shop and believe he then heated it to make it more concentrated.

NPR: Dancer Accused In Bolshoi Attack Defends Actions