Authorities are conducting a manhunt for a 32-year-old woman suspected of buying the handguns used in the killing of a Vermont Border Patrol agent last week. Police are searching for Michelle J. Zajko,

The gun used in the shooting death of a Delaware County couple was used in connection with the line-of-duty shooting death of a border patrol agent in Vermont, officials said.

The weapon that killed Agent David Maland last week in northern Vermont was bought by a person of interest in a double murder two years ago in Delaware County, state police say.

Law enforcement agencies in several states are reportedly searching for a woman believed to have supplied guns used in the fatal shooting of a Border Patrol agent last week.

A Washington state woman has been ordered held without bail in connection with the death of a U.S. Border Patrol agent in Vermont.

A United States Border Agent was shot and killed during a traffic stop in Vermont near the Northern border, Fox News has confirmed.

Teresa Youngblut appeared in U.S. District Court in Burlington for a detention hearing following her initial appearance earlier this week. NBC5 was in the courtroom for Thursday's hearing.

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.

Officials said the agent was shot on Interstate 91, which was closed for several hours near the border with Canada.

As the sprawling investigation unfolds, here’s an overview of the key figures involved and their alleged connections.

A United States Border Patrol agent was shot and killed in Vermont on Monday, according to The Department of Homeland Security.

A 21-year-old Washington state woman was arrested Friday for allegedly shooting a US Border Patrol agent to death in Vermont earlier in the week, according to federal authorities.