Rally against job cuts imposed under new economic changes.

Becomes fourth Latin American nation to legalize gay marriages.

Calls beheading of a Canadian citizen act of cold-blooded murder.

Questions gov't's credibility in search for missing students.

Announces nationwide power rationing for four hours a day.

Brazilian leader appears almost certain to be forced from office.

As fatalities soared, survivors cobbled together makeshift coffins.

Held talks with lawmakers day before impeachment vote.

Brazilian President Dilma Rousseff said on Tuesday her vice president was orchestrating a conspiracy to topple her, as efforts to impeach the leftist leader gained momentum in Congress.

Organized crime prosecutor part of the operation.