From the article:
The heck? 'Often at kindergartens'?

2019年1月8日，北京宣武师范学校附属第一小学，一名并未续约的维修工持手锤在校内打伤多名儿童，正在上课的儿童中有20名受伤，其中3人伤势严重。
2019年2月21日，江西吉安八中校园门口突发持刀砍人事件，包括路人、学生在内11人受伤。
2019年3月27日，河南焦作市一名女性向幼儿园学生投毒，致使25名学生中毒，其中1人死亡，21人轻伤，2人轻微伤。
2019年4月3日，湖南宁远柏家坪镇完全小学发生一起持刀砍伤学生事件，致2人死亡2人受伤。
2019年9月2日，湖北恩施市发生校园恶性砍人事件。一名中年男子持刀闯入当地一所小学校园内，持刀行凶，致8名学生死亡，2名学生受伤。
2020年6月4日，广西苍梧县旺甫镇中心小学一名保安持刀砍伤40人，其中3人重伤。
2021年4月28日，广西北流市新丰镇健乐幼儿园发生一起男子持刀伤人事件，造成2人死亡，16人受伤。
2021年5月25日，河南南阳一小学附近发生持棍殴打学生事件，致12名学生和2名群众受伤。
2022年8月3日，江西安福县一名男子闯入幼儿园，持刀行凶，致3死6伤。
2023年7月10日，广东省廉江市一家幼儿园内，一名25岁男子持刀行凶，造成6人死亡、1人受伤。死者为3名儿童、2名家长和1名老师。

January 8, 2019, Beijing Xuanwu Normal School affiliated with the First Primary School: A maintenance worker whose contract was not renewed attacked several children with a hammer inside the school, injuring 20 children, 3 of whom were severely injured.

February 21, 2019, Jiangxi Ji'an No. 8 Middle School: A sudden knife attack occurred at the school gate, injuring 11 people including passersby and students.

March 27, 2019, Jiaozuo City, Henan: A woman poisoned students at a kindergarten, resulting in 25 students being poisoned, with 1 death, 21 minor injuries, and 2 very minor injuries.

April 3, 2019, Baijiaping Town, Ningyuan, Hunan: A knife attack at a complete primary school resulted in 2 deaths and 2 injuries.

September 2, 2019, Enshi City, Hubei: A severe knife attack occurred in a local primary school, perpetrated by a middle-aged man, resulting in 8 student deaths and 2 injuries.

June 4, 2020, Wangfu Town Central Primary School, Cangwu County, Guangxi: A security guard injured 40 people with a knife, including 3 critically.

April 28, 2021, Jianle Kindergarten, Xinfeng Town, Beiliu City, Guangxi: A man with a knife attacked people, resulting in 2 deaths and 16 injuries.

May 25, 2021, near a primary school in Nanyang, Henan: A man beat students with a stick, injuring 12 students and 2 bystanders.

August 3, 2022, Anfu County, Jiangxi: A man entered a kindergarten and committed a knife attack, resulting in 3 deaths and 6 injuries.

July 10, 2023, a kindergarten in Lianjiang City, Guangdong Province: A 25-year-old man with a knife attacked, causing 6 deaths and 1 injury. The deceased included 3 children, 2 parents, and 1 teacher.

what crooked mentality, go on mass stabbing for personal injustice?

Why not target high ranking officer responsible for their injustice? Helang don't care if u killed one hundred pipit.

worst is target children in kindergarten, really sohai cowards.

But one huge difference, Murica shooting not targeted at kindergarten.......