At least four people killed in the United States for Halloween Day.

The event occurred in a rented house in Oranda, about 30km east of San Francisco, and police officials have confirmed the balance.

While local media also reported that three people were killed and nine others were injured at a Halloween party in southern Los Angeles Tuesday evening.

But there is more to balance. The evening of Halloween, a seven-year-old girl, who was going door-to-door to the neighborhood for traditional ritual <x0).

The girl, who was dressed as a bee, was hospitalized. She seems to have been in the midst of a group of people, where one suddenly opened fire. In Chicago, shooting and episodes of violence associated with firearms have already turned into a real wound to the city.