An incredible family tragedy has shocked the USA.

A 12-year-old girl stabbed her brother, a 9-year-old boy, to death because she thought he was…possessed!
According to the American media, the tragedy happened in Tulsa, Oklahoma, in January, but the case has now seen the light of public

The girl stabbed her brother more than 15 times while he slept and then threw the knife out the window.

The 9-year-old boy was taken to the hospital, where he later succumbed to his injuries.

The police released video from the moment of the girl’s arrest, in which she cries profusely, apologizes and begs the officers not to arrest her.

The footage is stomach-churning as the killer herself is a child.

“I’m sorry, I’m sorry mom! I didn’t want things to happen like this! I don’t know how I did it, it was something demonic. I’m going to spend the rest of my life in prison,” the terrified 12-year-old can be heard saying as police handcuff her outside her home.

The policeman speaks to her in a calm manner and asks her where the knife is, and the 12-year-old explains to them where she threw it.

In the footage, her mother can also be heard speaking to her clearly upset and saying: “She has stab wounds to her chest. You could kill him! Beg God to live.”

The video continues with the girl switching to the department.

According to her mother, Lyda, the girl had recently received medication, but she never had any reason to believe she was a dangerous child.