Motorcycle rider thrown off Houston overpass in crash

(Source: Onscene)
HOUSTON - Houston Police continue to investigate a motorcycle crash that happened just after 1:30 a.m. on the North I-45 Freeway interchange overpass to the South 59 Freeway.
Fatal motorcycle crash
What we know:
Investigators believe the rider, a 19-year-old man, was traveling north in the 2800 block of Gulf Freeway on a black Harley-Davidson motorcycle, and took the South Freeway exit ramp at a high rate of speed. He crashed into the barrier on the flyover ramp and was ejected. He fell into the grassy area near the 1900 block of Pierce Street.

(Source: Onscene)
Police say the motorcycle continued on the overpass before stopping.
Police investigators say they were not able to find the crash initially, but searched the area and found the bike, then found the rider in the grassy area below.
What we don't know:
The name of the victim has not been released.
The Source: Information in this article is from the Houston Police Department and Onscene.