Argentine leader: Nisman death 'not suicide'

Argentina's president says she is convinced that a prosecutor who had implicated her in a cover-up did not kill himself, as initially reported.

In a letter published on her website, Cristina Fernandez de Kirchner did not say who she thought Alberto Nisman's killers were, but she implied that the aim may have been to discredit her.

Wyre Davies reports from Buenos Aires.