FILE – Micki Witthoeft, center, mother of Ashli Babbitt, the woman fatally shot by police inside the U.S. Capitol during the Jan. 6, 2021, riot, joins protesters outside of the Supreme Court on the ...

Authorities called the attack terrorism and said Bartkus left behind nihilistic writings that indicated views against procreation, an idea known as anti-natalism. Here’s what to know about the case.