New court documents show the pupil confessed to the attack and outline how he took his mother's gun.
The six-year-old student who shot his teacher in the US earlier this year, boasted about the incident saying "I shot [her] dead", unsealed court documents show.
While being restrained after the shooting at a Virginia school, the boy is said to have admitted "I did it", adding "I got my mom's gun last night".
His teacher, Abigail "Abby" Zwerner - who survived - filed a $40m (£31.4m) lawsuit earlier this year.
The boy has not been charged.
The boy's mother, however, Deja Taylor, has been charged with felony child neglect and misdemeanour recklessly leaving a loaded firearm as to endanger a child.
In Ms Zwerner's lawsuit, filed in April, she accuses school officials of gross negligence for ignoring warning signs and argues the defendants knew the child "had a history of random violence
The documents also mention another incident with the same student while he was in kindergarten. A retired teacher told police he started "choking her to the point she could not breathe".
I wonder if unfettered access to violent media, without parental guidance or context, coupled with a culture of narcissistic whinging about how important guns are for life, with zero structure at home led to this happening.
As a person who grew up with unrestricted access to violent media, I argue against this point.
I was watching violent and bloody films like Blade, Kill Bill, From Dusk Till Dawn around the time I was 5. There are a host of violent games avaliable from that time, too.
I feel like there are two reasons one would seek this type of media out: the aesthetics of violence (there's a reason John Wick has 4 films) and genuine psychopathy, a craving to emulate.
I'd argue very few people have an actual craving to emulate extreme violence, even in an environment saturated with its artificial presentation, and that those people would do so without the access to said saturated media. I blame the parents mostly. It's not the movies that make the attitude for how to treat others, it's how you're shown to treat others in real life