It happened at about 7:30 a.m. Monday, Dec. 2 in Fort Salonga, Suffolk County Police said.
After walking her grandchild to the bus stop, Nancy Richard, 79, was returning to her home on Concord Drive when she was struck by a 2015 Mercedes S550, driven by her husband, Peter Richard, who was backing out of their driveway, according to police.
Nancy Richard was transported to Huntington Hospital where she was pronounced dead. Peter Richard, 83, was not injured.
The vehicle was impounded for a safety check.
Click here to follow Daily Voice Massapequa and receive free news updates.