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 ...

In a barrage of posts rife with misinformation, he revived questions about a child sex abuse scandal, vilified the prime minister and defended a jailed far-right agitator. By Mark Landler A ...