A Michigan court has made a historic ruling that sets a precedent in the United States: has convicted Ethan Crumbley’s parents of “involuntary manslaughter”minor perpetrator of the shooting that ended with the death of four children at a school.

The reason has been because buy his son the gun with which he carried out a shooting just four days later in which he killed four children from a school.

Hours before the massacre, the parents went to school alerted by some bloody drawings with messages of hopelessness from their son, but they did not take him home as recommended.

Now, after being declared guilty, they are waiting for the sentence, which could condemn them up to 10 years in prison in an unprecedented event in the United States, since they have been the first parents convicted for such an event.