This is a possible concise summary:
The text is a transcript of a video by Kwili, a YouTube channel that discusses real and interesting topics. The video is about three tragic stories of bullying and its consequences. The first story is about Kosta, a Serbian boy who was bullied for being different and smart. He snapped one day and shot his bullies and his teacher at school, killing nine people and injuring six others. He had planned the attack for months and had a list of targets. He surrendered to the police and showed no remorse. The second story is about Daniel, an American boy who was bullied for his hobbies and music taste. He was verbally and physically abused by his classmates, and one of them even told him to kill himself. He decided to end his life and told some people about it, but no one took him seriously except his hunting buddy Matt, who tried to save him. But it was too late, Daniel shot himself at home while his family was away. His parents were devastated and blamed themselves for not noticing his pain. The third story is about Reena, a British girl who was bullied for her skin color and Indian origins. She wanted to fit in with her friends, who were bad influences and treated her poorly. She even reported her parents for abuse to get away from them, but she regretted it later and reconciled with them. One night, she went to a party by the river with her friends, who turned on her and beat her up. Then one of them, Kelly, followed her and hit her on the head, then drowned her in the river. Her body was found two days later after a witness reported the crime. Kelly was eventually sentenced to life in prison for second-degree murder.
The video ends with Kwili urging the viewers to listen to their children and stop bullying, and asking them to share their experiences in the comments. He also thanks them for watching and tells them to subscribe and activate notifications for more content.
Here are the key facts extracted from the text:
1. Kosta Kecmanovic was a 13-year-old student in Serbia who was bullied at school and killed 10 people in a shooting spree in 2023.
2. Daniel Fitzpatrick was a 13-year-old student in New York who was bullied at school and committed suicide in 2016.
3. Reena Virk was a 14-year-old student in British Columbia who was bullied by her friends and murdered by two of them in 1997.
4. Bullying is a serious problem that can have devastating consequences for the victims, their families and the society.
5. Parents, teachers and authorities have a responsibility to prevent and stop bullying and to support the victims.
6. Children who are bullied may feel isolated, depressed, angry or hopeless and may resort to violence or suicide.
7. Children who bully others may have low self-esteem, poor social skills, family problems or mental health issues.
8. Bullying can take many forms, such as verbal, physical, emotional, cyber or sexual abuse.
9. Bullying can be influenced by factors such as race, ethnicity, gender, sexuality, appearance, interests or abilities.
10. Bullying can be prevented by creating a positive school climate, promoting respect and empathy, educating students and staff about bullying, intervening early and providing counseling and support for both victims and bullies.