Since no article was written let me try to write down as I remember it(Conquista).

One of our goats or barbies got shot or killed by either a Vinci or a Kerberos member (believe it was Vinci but too long ago to be sure). We arranged for some bloodmoney, but instead of paying us they went to boost there don instead.
Sama also had some problems with one of those fams, dunno exactly what that was.
So we decided on shooting since they didnt even paid an advance payment or announced when it would get paid.