A 78-year-old woman who crashed her vehicle into the MBTA’s Wollaston Red Line station Thursday has died, MBTA Police said. The victim was identified as Mary Mullaney of Quincy. The medical examiner’s office was to perform an autopsy Friday to determine the cause of death, Transit Police said. Mullaney had a medical emergency before crashing her car around 10:25 a.m. Thursday, police said. A 57-year-old man was struck by the vehicle, police said. Mullaney received emergency CPR at the scene, and she and the man were taken to Quincy Medical Center. An update on the man’s condition was not immediately available.