Anadolu / Celal Gunes/Anadolu Agency via Getty Images Two people and a dog were killed after a road rage incident became a stabbing spree on a Virginia highway on Sunday. Virginia State Police said a state trooper was dispatched to a road-rage incident around 1:20 p.m. near Exit 42 along I-495 in Fairfax County. Upon arrival, the officer encountered a man brandishing a knife. The trooper shot the man in self-defense, who was taken to a nearby hospital, where he died from his injuries. Troopers encountered four stabbing victims at the scene. One of the victims, a 39-year-old woman, later died from her injuries. A dog that was stabbed also died at the scene. Three more people were taken to a nearby hospital for medical treatment. State police said they believe the stabbings may have happened as a result of a crash along the southbound I-495, and the incident is not believed to be terrorism-related. An investigation is ongoing. The Daily Beast reached out to Virginia State Police for comment. Read it at Fox Baltimore Read more at The Daily Beast.