Finally I get the referendum result(by the way the result was available on the same day, since our votes are eletronics and the ellection is computerized so the counting is very quicly but I was completely tired to post here...
sorry) : The "No" won what means the guns commerce keeps legall, but the result was interpreted as a protest made by people who is sick of that violence and blame our governement for not doing any practical thing to stop it...