Martinez was crossing Red Hill Avenue at the 5 freeway off-ramp when she was struck by a Mercury Sable just before 11:45 a.m.
The woman continued driving, but witnesses followed her and called police.
Officers finally caught up with her as she pulled into a strip mall.
She had no idea she had hit anyone and was so distraught, officers had to call paramedics.
It has been four months and no arrests have been made. Now Martinez' family is asking the public for help and asking potential witnesses to come forward.