The First Judicial District Attorney’s Office Mourns the Loss of Rio Arriba County Sheriff Billy Merrifield

April 20, 2025 Santa Fe, NM – The First Judicial District Attorney’s Office joins the people of Rio Arriba County and the greater Northern New Mexico community in mourning the passing of Sheriff Billy Merrifield, a steadfast leader, dedicated lawman, and respected partner in justice.

Sheriff Merrifield was a champion for his community. His experience in law enforcement and corrections and his commitment to crime prevention and his respect for his role made him a vital partner and a cornerstone of our justice system. We will miss him.

“Sheriff Merrifield embodied the best of public service,” said First Judicial District Attorney, Mary Carmack-Altwies. “We worked well together—with the same goal of making Rio Arriba County a safer place for everyone. His leadership, integrity, and dedication will be deeply missed, both professionally and personally.”

Sheriff Merrifield was not only skilled in investigations and law enforcement operations but also deeply invested in the well-being of the community he served. His leadership extended beyond the badge—he was a mentor, a collaborator, and a true public servant whose influence will continue to resonate throughout the region.

The FJDA extends their condolences to the Merrifield family, his colleagues at the Rio Arriba County Sheriff’s Office, and all those affected by this loss. We are all grateful for Sheriff Merrifield’s partnership, his friendship, and his commitment to justice.