A second teenager was also shot a mile away from the school on Wednesday.
A California high school senior was arrested Monday on battery charges after allegedly stealing a classmate's "hateful" Make America Great Again hat.
The former music teacher denied all charges during his arraignment Thursday.
The 20-year-old went missing in Brooklyn, Iowa, almost a month ago.
"The student was promptly returned to class and the school administration contacted the family to apologize."
Tens of thousands protested the country's road safety standards for more than a week.
"I did nothing wrong, I wasn't making any noise or bothering anyone. All I did was be black."
Tibbetts went missing from her hometown of Brooklyn, Iowa, in mid-July while she was dog-sitting for her boyfriend's brother.
Mollie Tibbetts went missing in mid-July.
Education Secretary Betsy DeVos has rolled back protections for transgender students.
"Aw, don't be ashamed now. 'Cause you weren't ashamed during the school year. We need to put this on your Snap[chat] so all your friends can see."
The head of Russia's security council blamed a wide range of groups for implanting "destructive views" in the minds of the youth.
The Justice Seekers Student Movement said the "illegal" building must be destroyed.
It has been nearly 19 years since Columbine and some students plan to walk out on the anniversary of the tragedy
The mayor of Cambridge called the incident "disturbing."
The victim was reportedly killed in a campus residence hall.
The teacher faces at least 10 years in prison for kidnapping and sexually assaulting Elizabeth Thomas.
Sixteen-year-old Kyle Kashuv said the two talked about the cases in which the Supreme Court judge dissented.
The 26-year-old student, who owned two rifles, is being sent to China.
The student activist also said that amid new security measures, his high school now feels like a prison.
The altercation took place as hundreds of students gathered outside Southwest High School in Minneapolis.