andrew ` drew ' butler , 25 , allegedly shot mother-of-three kendra gonzalez from the passenger seat in san jose , california , in front of the couple 's two-year-old son and her teenage daughters .
after the vehicle stopped , butler got out and dragged her body from the driver 's seat and left it on the road .
according to kpix he then ordered the teenage daughter , who was with her boyfriend at the time to get out of the car and take the baby with them , before driving off .