A dramatic turn in a high-profile case with national ties unfolded this week with the arrest of Bill Stevenson, the former husband of first lady Jill Biden, on a charge of first-degree murder in the death of his wife.

Stevenson, 77, was taken into custody in Delaware following a weekslong investigation into the death of his wife, Linda Stevenson, authorities said. Police say he was arrested without incident at his Delaware home. He is being held after failing to post $500,000 cash bail.

An arrest photo released by authorities shows Stevenson following the charge.

Years before his arrest, Stevenson sat down with News 12 senior reporter Tara Rosenblum for an exclusive interview, speaking candidly about his life, both of his marriages and his connection to one of the most infamous cold cases in New York history.

In that interview, Stevenson said he had a romantic affair with Kathie Durst just days before she disappeared from her Westchester home. Kathie Durst was allegedly killed by her husband, real estate heir Robert Durst, in a case that has haunted the nation for decades.

At the time, Stevenson spoke openly about his reported affection for Kathie Durst.

Stevenson was previously married to first lady Jill Biden when she was known as Jill Jacobs. He told News 12 they were married for six years.

During the interview, Stevenson also spoke at length about his current wife at the time, Linda Stevenson — the woman he is now accused of killing.

“I have the most amazing family,” Stevenson said in the interview. “I’ve got an amazing wife who’s going to look at this and go, ‘Wow, she really doesn’t know what really happened.’”

Stevenson described Linda as a steady presence in his life for decades and said he was open with her about his past and the difficult subject matter he was discussing on camera.

“She’s aware of everything,” he said.

He told News 12 he married Linda on Sept. 19, 1986, and spoke about helping raise her young daughter, Christina, whom he described as his closest friend. Stevenson said he and Linda had been married for more than three decades.

Fast forward to this week, when a grand jury indicted Stevenson in connection with Linda Stevenson’s death.

The charges mark a stark and jarring contrast between the man who once spoke publicly about seeking justice for a murder victim and the man now accused of committing one himself.