Manuel Contreras-Galdean who already has one DUI charge against him killed 16 year old Kelly Tracy in a head on collision as she made her way to a school event at Gilbert Highland High School .

The driver of the truck, Manuel Contreras-Galdean, 32, attempted to complete a left turn from eastbound E. Guadalupe to northbound S. Sossaman when it turned into the path of the Nissan, said Sgt. Ed Wessing of the Mesa Police Department.

Contreras-Galdean was arrested and booked on one count of manslaughter and one count of aggravated assault.

 Band members held a vigil Saturday night at City of Grace Church in Mesa. Kelly Tracy played the xylophone in the Highland High School band. Matt is in the drumline.