The U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives sent an alert to federally licensed firearms dealers a day after the shooting seeking information related to any gun purchases by Michelle Jacqueline Zajko.

An elderly Vallejo crime witness who was ambushed and fatally stabbed could be tied to multiple coast-to-coast deaths, including a Border Patrol agent.

A woman charged in the fatal shooting of a U.S. Border Patrol agent in Vermont is scheduled to appear in federal court.

Investigators believe a radical "death cult" known as the "Zizians" could be behind the January killing of a Vermont Border Patrol agent. Authorities say the group could be linked to at least five other deaths across the country dating back to 2022.