greg manto is staying on the scene until northbound i 25 opens just after 8 o'clock o'clock tonight and he will join stretch of highway and just a minute but first we start live in castle rock with warm to put donahue and the crash that killed him. >> reporter: as you can imagine, colorado state troopers and the douglas county in the douglas county sheriff deputies that we spoke to tonight are devastated by today's loss, one may say could have a end should have been avoided. >> is a somber evening tonight. >> trooper cody donahue, an 11 year veteran was state patrol tragically state patrol tragic line of duty. >> this is becoming much too frequent in our community and quite frankly it needs to stop. >> at 1:30 p.m. through per donahue was investigating a crash on i 25 just south of castle rock when he was struck and killed by a passing commercial food carrier truck. >> yes, they resented a criminal investigation that is ongoing at this point right now. >> the county sheriff's office has taken the driver of the attorney on for coming forthcoming charges. >> if appropriate tonight and pro