From Fox News:
A five-year-old boy was stabbed to death by his twin brother during a fight between the pair in California earlier this week, the Santa Cruz County Sheriff's Office announced via a social media post.
The incident took place Wednesday just before 4 p.m. at the family home on Tucker Road in rural Scotts Valley where one of the boys grabbed a small kitchen knife and stabbed his twin sibling, police said. Scotts Valley is about six miles north of the city of Santa Cruz.
"Tragically, during the incident, one of the 5-year-old's got a small kitchen knife and stabbed his twin brother," the post reads.
Deputies were called to the scene and the victim was rushed to hospital where he later succumbed to his injuries.
"We are heartbroken for the family of these two young children and share in their grief," the post continues.
The Sheriff's Office said that based on its current investigation, the child was unaware of the wrongfulness of his actions and so no charges will be filed against the boy or anyone involved.
The Sheriff's Office cited Penal Code 26 which presumes that youth under the age of 14 are not capable of committing a crime unless "at the time of committing the act charged against them, they knew its wrongfulness."
It's profoundly tragic to consider how, later in life, this child might struggle with the guilt of having caused his twin's death. That kind of burden can haunt someone for a lifetime.