"She was suppose to be graduating from the 5th grade on June 10. Now my baby isn't getting a chance to graduate," said Williams.
Ms. Williams says letters from her daughter's classmates are helping her cope.
"She wanted to be Beyonce. When you would ask her what she wanted to be when she grew up she'd say Beyonce," said Williams.
Cedric and Zaria were killed Tuesday afternoon on Highway 74 in Riverside County. Investigators are looking for the driver of a car travelling erratically in the area, that may have caused the accident.
Ms. Williams hopes the driver will come forward.
"I am asking for a little bit more support in keeping my daughter's memories alive. I need help finding who did this and bring them to justice. Whether it was purely an accident we just need to settle it," said Williams.
Investigators are looking for a black Honda or Acura, with lightly tinted windows and spinner wheels. The suspect is described as a white male who is 20-25 years of age. He has short dark hair. He is clean shaven and has a tattoo on his left forearm.
An eyewitness gave a good description of the suspect. If you have any information about the hit-and-run driver please call the CHP at (951)769-2000.