Unarmed 25-year-old Bijan Ghaisar was killed by Park Police in 2017 after a minor car crash. The officers have never faced charges.

The family of Ghaisar, who was killed by U.S. Park Police in 2017, described the decision as a “betrayal to our family and to justice.”

The judge dismissed the charges on the basis of a “supremacy clause,” which grants federal officers immunity from state prosecution if their actions on the job are deemed “necessary and proper.”

The change, a reversal from the Trump Administration’s stance in the case, will allow prosecutors to have access to the agents who investigated the Nov. 2017 shooting.

The Trump Administration’s Justice Department previously declined to pursue charges in the case.

The unarmed motorist was killed more than three years ago, and his family is still pursuing justice.

Officers Alejandro Amaya and Lucas Vinyard fatally shot a 25-year-old driver three years ago. Fairfax County Commonwealth’s Attorney Steve Descano pursued criminal charges against them, but now the two are trying to move their case to federal court where they have legal protection.

“Our heavy hearts are a little lighter tonight knowing that the police officers who murdered our son and brother are closer to being held accountable for what they did,” the Ghaisar family said in a statement.

Lawyers for the federal government say they want to hold off on a civil suit until a Fairfax County criminal investigation ends. Ghaisar’s family says it’s just another tactic to delay justice.

The bill, prompted by the 2017 shooting death of Virginia resident Bijan Ghaisar by two U.S. Park Police officers, also would prohibit the use of chokeholds and lower legal standards to pursue criminal and civil penalties for police misconduct.