Amidst conflicting claims regarding the death of Argentine prosecutor Alberto Nisman, police here raided the house of his associate Diego Lagomarsino, whose gun was used in the yet unexplained killing, Spanish news agency Efe reported.
Lagomarsino, an IT specialist who worked with Nisman, admitted providing the gun that was found with the victim and he was charged for it.
He claimed that he gave his gun to the prosecutor who had serious concerns about his own security.
A search warrant was issued by Judge Fabiana Palmaghini before Metropolitan Police raided Lagomarsino's house on Monday in Martinez, on the outskirts of Buenos Aires, local media reported.
Nisman, the special prosecutor investigating the 1994 bomb attack on the Argentine Israelite Mutual Association (AMIA) building in Buenos Aires, was found dead in his Buenos Aires apartment on January 18.
News of his death followed just four days after he filed a complaint against Argentine President Cristina Fernandez for alleged involvement in covering up Iran's involvement in the attack.
Lagomarsino has admitted he went to Nisman's apartment on Saturday, January 17.
According to forensic investigators hired by Nisman's ex-wife Sandra Arroyo Salgado, Nisman's death was murder -- not accident or suicide -- and he may have died as early as January 17.
However, Lagomarsino's defence lawyer Maximiliano Rusconi claims evidence shows that the prosecutor was alive and using his laptop on Sunday morning.
Rusconi told media that preliminary investigations confirmed a local connection was made from Nisman's computer, contradicting Salgado's claim.
