A traffic stop in Vermont has cracked open a cultlike group called Zizians linked to six deaths in three states.

The killing of U.S. Border Patrol Agent David Maland near the Canadian border last month and five other homicides in Vermont, Pennsylvania and California have been tied to a cultlike group.

Here's a look at the timeline of events in a series of killings that culminated in a Jan. 20 highways shootout that killed a Border Patrol officer in Vermont. It is based on Associated ...