Argentine Ex-Spy Chief at Center of Prosecutor's Murder Mystery Is Missing

Argentine authorities can’t locate the former spy chief at the center of an investigation into the death of a prosecutor who accused President Cristina Fernandez de Kirchner of an attempted cover up.

Prosecutors accompanied by intelligence agents weren’t able to find Antonio Stiuso at three addresses registered to his name, Intelligence Secretary Oscar Parrilli said. Stiuso, who worked his way up through the intelligence agency over four decades before his departure last month, was summoned to testify on Thursday by the prosecutor investigating the death of Alberto Nisman from a shot to the head Jan. 18.