Serial killings-Phoenix story
ABC News - 08/13/2016
Authorities have been tight-lipped about the evidence they have, but DNA from the gunman would be almost impossible to recover from the crime scenes unless the shooter touched one of the victims or left behind an object, said Jack Levin, a criminologist at Northeastern University in Boston.
The first shooting happened in a neighborhood several miles from Maryvale on March 17, when the Nissan drove past two teenagers and pulled a U-turn. A police report said the driver was wearing a hat and fired a handgun, hitting a 16-year-old boy in the arm, abdomen and hip. He survived and described what he saw.