Earlier this year, a dozen or so suits descended on the deserts of New Mexico’s remote reservations, tribes and pueblos. Their goal? To close cold cases and backlogs and hand off the accused with enough evidence for the U.S. Attorney’s Office to prosecute.

The mother of missing Melodee Buzzard has been charged with first-degree murder in the 9-year-old girl's death.

The FBI untangled the mysterious Jan. 6, 2021, pipe bombs case by relying on a “new computer program,” which deciphered cellphone data that the agency had held for years. Earlier this month, the government charged Brian Cole Jr. with planting the pipe ...