UPDATE 5/20: The Clark County Coroner has identified the motorcyclist as 50-year-old Joseph Olszweski from Las Vegas. His cause of death was due to multiple blunt force injuries and it was ruled an accident.
LAS VEGAS (KTNV) -- A motorcyclist has died after crashing around 11:30 p.m. Thursday near West Flamingo Road and Granite Ridge Drive on the west side of the valley.
Police say that the motorcyclist failed to negotiate a roundabout and overturned.
The motorcycle slid into the concrete curbing that bordered the roundabout and into the landscaping.
The 50-year-old male rider sustained substantial injuries and was originally transported to the University Medical Center in critical condition before dying on May 15.