Police said Melissa Maher, 36, of Brookhaven, had "a strong odor of alcohol on her breath" when she was stopped minutes before the fatal crash.
Police said Capt. Dennis Sullivan directed Maher to stop her car on Mason Street, where she began pleading with the officer to "let her go" because her daughter was in the car and she feared her ex-husband, the girl's father, "would be upset with her."
Police said that Sullivan directed Maher to remain behind her vehicle, but that when the officer called for an assist unit to conduct a field sobriety test, Maher ran to her car and drove away. With no exit from a cul-de-sac, police said Maher came back and drove toward the police car that Sullivan had positioned to block her exit.
Maher died at the scene.
She was later transferred to Stony Brook University Hospital with what police described as "serious injuries to her head and extremities."
Police said Petheram and his wife, Kristy, both 26, were not injured in the crash.