http://en.wikipedia.org/wiki/Martian_meteorite :
"These meteorites are thought to be from Mars because they have elemental and isotopic compositions that are similar to rocks and atmosphere gases analyzed by spacecraft on Mars."
Titov and Manarov spent 365 days in space in a single mission in 1987..1988.
Then Manarov logged another 175 days on Mir, couple of years later. So, I guess, he was in pretty good health after his first mission;-)
here are more photos/videos of the plant before and after the accident - http://forums.drom.ru/hakasiya/t1151240353.html
There is also a lengthy discussion of accident on the local forum (many plant workers participate and deliver "first hand" news there) - http://forums.drom.ru/hakasiya/t1151239745-p104.html
Transformers look ok, there were no smoke nor traces of fire damage. Hydraulic surge in generator #2 looks like most likely reason of the accident (the reasons of surge are not that clear still though, people talk about destruction of turbine or generator failure).