Transcript for Mom mourns 10-year-old killed in apparent road-rage incident: 'She was just a baby'
We turn next tonight to the urgent manhunt in a deadly road rage shooting. A husband and wife with their daughters in the car were followed home by another driver who then opened fire on the family. ABC's Adrienne Bankert is in Phoenix. Reporter: Tonight, a 10-year-old girl is dead, shot while riding along in the family car. Phoenix police now on the lookout for this white truck. Surveillance video shows the truck tailgating a family of four back to their house. They pulled into their resident, the truck stopped, driver opened the window and opened fire. Reporter: 10-year-old summerbell brown died at the hospital. Her father was wounded. Police suspect road rage is to blame. This is really hard for me, I lost my baby. Reporter: Officials are looking for a man between 30 and 40 years old and that white four-door Ford F-150 with damage to the left rear side. We are furious. There's nothing that's going to bring our daughter back. And there is nothing that we want more than justice. Reporter: David, police say this is the seventh road rage incident so far this year, the fifth in just the last two weeks. David? Adree yaen Bankert tonight, thank you.
This transcript has been automatically generated and may not be 100% accurate.