According to authorities, Than Wtwe Than was walking out of the Canal Street subway station with her 22-year-old son when a thief tried to rip the son's bag away, causing him and his mother to fall down the stairs.
Than was taken to a nearby hospital where she was treated for severe head trauma caused by the fall. She died on July 21.
Now, police have identified her attacker as 52-year-old David Robinson.
While the motivation for the attack is unknown, the NYPD Asian Hate Crime Task Force is investigating the incident.
Get breaking news alerts in the FOX5NY News app. Download for FREE!