The shooting occurred in front of a petrol station located in Madariaga and South-access areas. There, aboard the Toyota Etios, Commissioner Erna David Martin, with Edward Franicevich, treasurer, facing the Office for Combating Drugs of the Federal Police in an operation that tried to break the extortion gang.
After the confrontation, distribution of audio recordings between the police, to report what had happened.
In the first recording the conversation between the troops who go to a place where a team of counter-narcotics was heard.
then Commissioner Radio warn soldiers wounded there, and they need a place where I can go down the helicopter.
"Is there a place to get out of the helicopter?"He asks for money which has been identified as the Commissioner Mendez, and continues: "There are effective with four arrows and one with two. "
The officers were injured, Sgt. Sergio Aran and Corporal Claudio de Carlo, were transferred to the Fiorito hospital.