Authorities continue looking into the death of a man while in his car along Interstate-17 Saturday morning near the Sedona exit. YCSO says the 20-year-old man was found at around 9 a.m. He had been reported missing by his sister from Phoenix last week. There were no witnesses and authorities say the death was “violent.” Both YCSO Investigations and DPS are investigating all physical evidence to confirm or rule out foul play. No further information is available.