Family frustrations over the investigation into this 19-year-old's death. They say he was walking to an appointment ... when a car hit and killed him. And STILL -- the driver has not been charged. 3 3 Tyler Self's family is talking to Channel 4, upset over why 6-months have passed, and still, no charges have been issued against the driver. Troopers say Self was walking on the sidewalk along Mayport Road in Atlantic Beach when he was hit. The driver is Christopher Duboulay. We're now learning Duboulay was NOT under the influence of any drugs or alcohol when the crash happened. He hasn't been charged... and now, may NEVER be charged. Channel 4's Heather Leigh talked to Tyler's brother today and joins us live from the newsroom. Heather? 3 3 3 Yea, I spoke with William Self, Tyler's oldest brother, and he told me he doesn't understand why nothing has happened... he said he spoke with the Florida Highway Patrol case investigator this morning. We did too, and were told criminal charges are unlikely. 3 00-0654-1:00According to the Florida Highway Patrol, this is where Tyler Self took his last breath... his family says the "Drive Safely" plaque with Self's name on it, is all that's left of what happened here last October. Which is one reason why they called us Tuesday....because they don't want Tyler to be forgotten.SOT William Self, Brother of teen killed, Clip 0425VL, 43:09 - 43:17 "They say he was killed instantly. The guy didn't get any tickets, nothing that day." The driver, 22-year-old Christopher Duboulay, hasn't been charged in the crash... according to a preliminary investigation report Self's family shared with us, Duboulay was tested for alcohol and drugs that day. It was only today, the FHP shared the results with the family. The lead investigator says those results show Duboulay wasn't drunk or on drugs, and wasn't speeding.William Self says he can't understand why it took more than 6 months.SOT William Self, Brother of teen killed, Clip 0425VL, 44:20 - 44:33 "I talked with the state this morning, and they said they couldn't do anything because the state troopers weren't done with their investigation yet. I talked with the state trooper 30 minutes later and he said that they were done with their investigation and that there was nothing else they could do. I said, I wanted this man in jail, he said it wasn't going to happen." FHP says investigations take time... and a 6-month time frame is not unusual. It says that the investigators are also working on other cases at the same time which can possibly slow things down.Duboulay recently pleaded guilty to possession of drug paraphernalia in an unrelated case. FHP says Duboulay probably won't be charged with any criminal wrongdoing, but civil citations are still possible. The FHP says there was surveillance video of the crash, but it only showed Duboulay was alone in the car. 3 Heather, what happens once the investigation is complete?ANSWER: FHP says the final report is about to be submitted to the state attorney's office, which will then decide what, if anything to file in the case.