You found American Beautyberry!
American Beautyberry, or Callicarpa americana, is a perennial shrub with clusters of small purple fruits. Beautyberry blooms from spring to summer. Pollinators, birds and mammals consume the fruit and distribute the seeds, allowing Beautyberry to spread. Beautyberry is known as a natural insect repellent, as well as a medicinal treatment of dizziness, stomachache, dysentery, and colic.