Christina Castro pleaded not guilty Tuesday to charges including motor vehicle homicide in connection with the crash at about 10:15 p.m. Monday.
Police say Castro may have been driving more than 70 miles per hour as she fled the scene of a prior minor accident. Officials said Castro was driving without a license.
When police arrived at the scene, the 27-year-old Castro was outside her 1992 Toyota Camry with her 5-year-old son. Her 7-year-old and 3-year-old sons were still inside.
Police say the children were not properly restrained.
The boys were taken to a hospital, where 3-year-old Jayden Figueroa was pronounced dead. The oldest son suffered critical injuries. Family members tell FOX 25 that the 7-year-old might be paralyzed. Castro and the 5-year-old boy sustained minor injuries.
Family members said Castro is a good mother who made a mistake.
The Associated Press contributed to this report.
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