The Rivera massacre was a spree shooting that occurred on 4 March 1992, in several towns in the Canton of Ticino, Switzerland.
Erminio Criscione, an Italian emigrant, shot six people dead and wounded six others.
On the evening of 4 March, Criscione armed himself with a Kalashnikov rifle and drove to the house of his friend and co-worker in Origlio.
He was on a wholesale meat suppliers training course when the shooting occurred, in which he targeted former colleagues.
Criscione was noted to have some financial difficulties,[6] and had failed a class taught by one of the men he killed.