India, Feb. 4 -- Former US President Joe Biden's wife Jill Biden's ex-husband has been charged with the killing of his current wife at their Delaware home in December, police said.

77-year-old William Stevenson was married to Jill Biden from 1970 to 1975.

They wed when Biden was 18 and Stevenson was 23, reported BBC.

New Castle County Police in Delaware said William Stevenson was arrested after a week-long probe into the death of his current wife Linda Stevenson.

"Detectives from the Division's Criminal Investigations Unit, in coordination with the Delaware Department of Justice, presented the case to a grand jury. As a result, an indictment was returned by the New Castle County Superior Court charging 77-year-old William Stevenson wi...