Thursday's shooting apparently followed an argument between Toumba and Captain Camara about taking responsibility for the killing of opposition demonstrators two months ago.

VOA: standard.2009.12.07

The committee chairman, Representative Edward Markey, was among the lawmakers who rejected the argument, saying the other companies' emergency response plans are no better than BP's.

VOA: standard.2010.06.15

But Chief Justice John Roberts of the U.S.Supreme Court rejected that argument.

VOA: standard.2010.03.03

Okay, well, let's say for argument's sakethat I'm not smart.

VOA: standard.other

Yet Spiegler says what's lost in that argument is justice.

VOA: standard.2010.07.26