On Dec. 16, in Madison, Wisconsin, 15-year-old Natalie Rupnow shot and killed two other people before taking her own life.

A California man apologized Friday for his connection to a 15-year-old girl who fatally shot a teacher and fellow student at ...

A criminal investigation remains ongoing into a Carlsbad man accused of communicating with a 15-year-old girl behind a deadly ...

A hearing for a gun violence restraining order Friday against Alexander Paffendorf, 20, was continued until April ...

A California man apologized for his connection to the 15-year-old shooter who killed a student and teacher in a Madison ...

Alexander Paffendorf appeared by video in a collared shirt and tie in court on Friday to face the consequences of his actions, without detailing his role in the Abundant Life Christian School ...

A Carlsbad man who authorities say communicated with a Wisconsin school shooter appeared in a San Diego courtroom on Friday.

Alexander Paffendorf expressed regret for his involvement when a judge offered a chance for final words before keeping an order to confiscate his guns and ammunition in place until April 4.

Alexander Paffendorf was detained late last month after FBI agents said he was plotting a mass shooting with Natalie "Samantha" Rupnow.

A California man apologized Friday for his connection to a 15-year-old girl who fatally shot a teacher and a fellow student ...