The body of 21-year-old Adolfo Vega-Suazo was found floating in Turtle Creek early Monday morning.
The 2010 W.T. White High School grad had been reported missing on Aug. 24. The last contact he had with anyone was through a phone call from a party that night.
At 9:35 a.m., a man walking his dog saw something in the creek and, upon investigating, realized it was a body, according to police reports.
Dallas Fire-Rescue pulled the man from the creek and the medical examiner has identified him as Vega.
Dallas Police have classified it as an unexplained death and homicide detectives are actively investigating the offense.