William Stevenson, reportedly former first lady Jill Biden's ex-husband, was arrested and charged with murdering his current wife, authorities said Tuesday. 

Stevenson, 77, was taken into custody Monday and has been charged with first-degree murder in the death of Linda Stevenson, said the New Castle County Police in Delaware. 

Officers were called on Dec. 28 concerning a domestic dispute to a home where they found Linda Stevenson unresponsive, authorities said at the time.