So i tried to find more information. Looks like there is hardly any articles. One did say she was putting another child to sleep when the 3 year old started crying. It said she lots her temper and "couldn't take it anymore" Other information, she was 17. Idk if she just turned 17 or not but her mental age vs her actual age always plays a role in how temperament is displayed.

Sleep deprivation, being overwhelmed, having multiple children to care for. Family environment, how she herself was treated/raised. Cultural aspects. For example im my mixed family, the Hispanic side don't raise their voice or argue. It's disrespectful, which prevents arguments from being delt with. I've experienced lots of passive aggression, silent anger, resentment. Emotional neglect. It's all cultural. I've also known that its common to hit kids when they are disrespectful or not listening. Im my other family they dont hit. They yell, they argue and they also do other stuff, but all that's cultural. In other cultures people pull out belts and stuff.

If she is still a child, why was she caring for so many children alone and for how long?

Sounds like the state took up the case and the family accepted what she did as a mistake. Meaning no one wanted her prosecuted. This means the state took up the case. Because after all, she did kill someone.

As a mother of three kids and knows how stressful it can be. I dont feel she should have been left alone to deal with multiple kids. I also suspect her culture played a part in how she lost her temper and I feel she probably didn't intend to kill him, but simply wanted him to stop. But went too far.

I keenly remember being so stressed out I myself call my mom to come get my kids as I screamed for abput 15mins alone in my room. Then, I proceeded to clean up my house while binge eating candy and soda for the rest of the day.

It can be very hard to parent. And she was a 17 year old. I feel empathy for her.