Seven-months pregnant Arlene Leonor Rodriguez, 24, and her unborn son were pronounced dead in hospital.
Another man who was fixing her car in Willington, Los Angeles, was also wounded in the shooting on Sunday.
Arlene’s step-mother Jessica it happened eight days after her 24th birthday as she launched a online fundraiser to help pay for her funeral.
The shooting was one of several in the city that day, which has seen 294 homicides so far this year. The city has not seen more than 300 since 2009.
Jessica Rodriguez wrote on her GoFundMe page: “My name is Jessica Rodriguez and I am married to Jose Rodriguez. Jose is from Wilmington, California where he shared 2 kids with Anita Gonzales. On Sunday November 15th we received the worst news a parent ever wants to hear.
“My step daughter Arlena Rodriguez, age 24 was shot and killed in Wilmington, California. Just 8 days after her 24th birthday. She was 7 months pregnant with a little boy. She is the mother of 3 kids, 1 boy 3 yrs old, and twin girls 2 yrs old. She was proceeded in death by her mom Anita in 2005 when she was only 9 yrs old. And then her brother Richard Rodriguez was tragically murdered in 2011 when she was age of 15.
“Losing her brother was mentally and emotionally hard for her to overcome.
“The family is asking for donations or any help to help put Arlena and her baby boy to rest. Any help is much appreciated.”
A police spokesman said: “Homicide detectives from the Los Angeles Police Department’s Harbor Area are seeking the public’s assistance in identifying the suspect, or suspects, responsible for the shooting death of 24-year-old Arlene Leonor Rodriguez and her unborn baby.
“On November 15, 2020, around 11:25 a.m., Ms. Rodriguez was sitting in a vehicle that was parked in the 1100 block of North Neptune Avenue, in the City of Wilmington. A male companion was working on the engine of the vehicle, when an unknown suspect approached on foot and fired multiple rounds into the vehicle. Ms. Rodriguez and her male companion were struck by gunfire. The suspect fled the location.
“Los Angeles Fire Department paramedics responded and transported both victims to a local hospital. The male victim suffered a non-life-threatening injury and is in stable condition.
“Ms. Rodriguez died at the hospital. She was seven months pregnant, and tragically her baby did not survive.”