John Barrineau and Cameron Herrin have both waived their appearances.
According to Tampa Police, Barrineau, 17, was street racing down Bayshore Boulevard when the driver of the car he was racing, Cameron Herrin, 18, struck a mother as she pushed her toddler in a stroller.
Jessica Raubenolt, 24, passed away shortly after the crash. Her 2-year-old daughter, Lillia, passed away the next day.
Electronic evidence obtained from the Mustang during a search warrant showed that the vehicle, driven by Cameron Herrin, was traveling at a maximum speed of 102 miles per hour before Herrin began to hit the brakes right before the crash.
Both Barrineau and Herrin face 30 years or more in prison if convicted.