Our Dad was fatally shot

Having to write this pains me, and I don’t know where to start. My dad, Carl Edmiston, was only 54 years old. He was shot and killed during a road rage incident in Dallas on Monday night while bringing my 17 year old brother up from Houston to see a specialist for his recently diagnosed scoliosis. My brother who has Autism was in the car, and witnessed my dad’s death but doesn’t remember much. If anyone has any information, please please contact us or the Detective Chad Murphy with the Dallas police. 

My dad leaves behind 4 children, and 3 grandchildren. We are in process of making funeral arrangements, anything helps. Thank you!