Bill Stevenson

Bill Stevenson is arrested and charged with first-degree murder.

Five weeks after his wife of 40 years, Linda, was found unresponsive and pronounced dead at their home in Delaware.

New Castle County police have been called about a domestic dispute.

No cause of death is included in the department's statement about the arrest.

Stevenson's 77 years old.

Linda was his second wife.

He married then-Jill Jacobs in 1970.

They separated in 1974.

She started dating then-Senator Joe Biden the next year, two months before her divorce was final.