An act of political violence can create shockwaves felt long after the dead are buried. In Argentina, it has been 21 years since the bombing of a Jewish community centre that killed 85 people - 86, if you now count the name of Alberto Nisman among them.

Nisman was a prosecutor still working on the case, who was found dead of a bullet to the head six weeks ago, the day before he was to testify at a congressional committee. We have since learned Nisman's investigation was closing in on President Cristina Kirchner, his working theory being that her government was covering up evidence in the case.

Kirchner was among those who initially called Nisman's death a suicide - so did much of the media backing her - but no one is saying that now. The story is unfolding across a media landscape that is a story in itself. President Kirchner's government has passed laws to redraw the media map in Argentina - a process that threatened the country's biggest media company, a conglomerate called Grupo Clarin.

There is no love lost between Clarin and this government - and that has been evident in the coverage of this case. It has been open season between Clarin and the media outlets that back the government.

With a presidential election coming up later this year, this case - and the way it has being covered - could prove crucial to who ends up holding power in Argentina. This is a complicated, headline story with multiple characters and layers - featuring a surplus of speculation, accusations and acrimony and a critical shortage of hard facts.

Source: Al Jazeera