Black Boxes didn´t record flight of Brazilian candidate killed in suspicious plane crash!!

I was banned for a few days and I´m surprised there aren´t any relevant threads about the highly suspicious plane crash that killed Brazilian Candidate on Aug 13th.

"The black box recovered from the wreckage of the plane crash that killed Brazilian presidential candidate Eduardo Campos did not record his flight, Brazilian Air Force (FAB) says."

[link to www.bbc.com]

Eduardo Campos was 3rd in the polls for presidetial elections in October and had the lowest rejection rates among all candidates.

Adding to that, Brazilian President Dilma Rousseff, who is running for reelection, sanctioned a law in May 2014 that determines that the investigation of plane crashes must run in secrecy:

(sorry, couldn´t find links in English but the information is widely available in Brazil and easily veerifiable)

[link to noticias.terra.com.br]

Probable scenery is that his vice Marina Silva will run in his place. As the current government, she is of communist background and aligned with the NWO Communist agenda.

Any thoughts?