From News 4 WOAI:
The police believe the other woman is the mother of the one found in the car. They are treating this as a double murder, and they are looking for two people who "may have valuable information" about the case.
Two women, possibly a mother and daugther, were found dead early Wednesday morning.
About 5 a.m., a security guard called police to report he'd found the body of woman inside a white car in the 100 block of Stribling, just south of Downtown. When police arrived, they found a woman who had apparently been beaten to death inside the car.
Police traced the car back to a woman living in 500 block of Senisa, on the Northwest Side. When officers went to the home, they found another woman dead inside.