simone romero has been covering the story for the "new york times" in buenos aires.bombing has been contentious in argentina for some time, right? fill us in a little bit on what's known and the prevailing theories about who did it. >> it certainty has, jeffrey. it's been a huge story in argentina for more than two decades now. this jewish center was attacked and blown up in 1994. 85 people were killed. more than 200 people were injured. there were various theories which flourished almost immediately as to who was responsible. and the theory that alberto nisman, the prosecutor was most focused on the lead he was most focused on was the iranian connection, and he had formerly accused hezbollah, a cell of hezbollah here in south america of carrying out of the attack and of iranians officials of orchestrating and financing it. but there were also competing theories here in argentina that continue to have strength and persist to should day that there may have been a syrian connection or there may have been local corrupt police officials involved in the bombing. and whate