The two people who died in a car crash that shut down Interstate 290 east in Marlborough, Massachusetts, on Monday have been identified as a mother and her adult son.
The Middlesex District Attorney’s Office identified them Thursday as Tyngsborough resident Mark Leakeas, 59, and Dracut resident Arlene Leakeas, 79.
Authorities haven’t shared many details about the crash, which closed the highway at Exit 30, causing backups for hours…