Singh was allegedly driving drunk in September when he hit Patricia Saidu, 21, head-on on Interstate 10.
Saidu was trapped in her vehicle when it burst into flames and died immediately.
Singh was taken to a hospital with a blood alcohol level of .21% with serious injuries, but he recovered and was released before police could check back in with him.
"She wanted to be a physician and medical doctor," her father, Dr. Patrick Saidu, told WAFB-TV, adding that Saidu hoped to be a pediatrician. Saidu comes from an immigrant family of doctors from Sierra Leone.
Louisiana police had also gone to his home days earlier but also decided he was too injured to be moved.
At some point after that, Singh allegedly fled the state and hasn’t been seen since.
"We are in the sixth month since this accident took place. Patricia was taken from us in a very tragic manner," her father told WAFB.
"I’m pleading with them," her mother, Martha Saidu, added. "I’m a grieving mother. My daughter did not deserve the way she died."
Crimestoppers is offering a reward for information leading to Singh’s arrest.
Singh is supposed to be in court next week.
"He left family behind in the Ponchatoula area, including a young child and a wife," Deputy U.S. Marshal Brian Fair told Crimestoppers Tuesday.
"He left a wake of destruction behind him with not only his family but definitely with the victim’s family."