as part of his story, lise spoke with the accomplice to the murder, david garza, about who the real killerook a plea for armed robbery, a lessor offense and was sentenced to 20 years. he said, ruben wasn't there that night. he said, there was someone else with me. >> i don't plan on saying the name of the person that was with me but i can assure you for a fact that it was not ruben cantu. the person that was with me is still out there. >> david garza confirmed to me that there was another boy who was about the same age as ruben who had curly hair, a little lighter hair than ruben's. >> a boy with curly hair had also been mentioned by juan moreno when he spoke with richard reyna. [ speaking in spanish ] >> but if ruben cantu was innocent, why did david garza allow ruben to be executed? >> david told me, we had a code of silence. we didn't talk. we knew that talking to the police would only get us in more trouble. >> me and ruben, we would never snitch each other out for anybody else involved. that was our loyalty, no matter who was involved. >> another friend of david and ruben's did name n

superintendent karen garza will join david culver just ahead to talk about the changes your kids willotice when they arrive at school today. what she says in 15 minutes. >> back to school and back to work for thousands of people in our area. and that means a back to traffic as buses begin to roll out this morning. >> news4's transportation reporter adam tuss has a report. how's its looking? >> reporter: aaron and eun, don't you love this time of the year, don't you love waking up and going out the door and finding traffic? let's look at the wind shield right now, 66 in the falls church area, yeah, we're pretty much loaded up right now. moving at about -- well, what you would say, 20, 25 miles an hour through this stretch. we call this the september slowdown because people are back from the summer vacations. you have all of the school buses back out on the road. you have a lot more activity out here and all of that helps contribute to what is now ranked as the worst congestion in the country. yes, we have that notorious honor. think about this, guys, in fairfax county alone, the school