TUCSON, Ariz. — The Tucson Police Department is investigating a deadly crash involving a motorcycle that happened near the east side Saturday night.
Police say officers from Operations Division East were called out to the area of South Kolb Road and East 19th Street around 11:21 p.m. for a report of a serious-injury motorcycle crash.
Upon arrival, Tucson Fire Department personnel were treating the motorcyclist, but was later pronounced dead at the scene, according to TPD.
The motorcyclist has been identified as 59-year-old Aaron Knosp. Next of kin has been notified.
Traffic Detectives were called out to investigate, where it was determined that the motorcyclist was traveling northbound on Kolb Road, slowing down to make a right hand turn onto 19th Street. Police say as the motorcyclist was turning he was struck from behind by a 2003 Acura TL that was traveling at a high-rate of speed at approximately 80 to 100 mph.
"Roadway evidence spanned a distance of three blocks north from 19th Street," according to TPD press release.
Knosp was not wearing a helmet at the time of the crash, police say.
DUI officers were called out to the scene and determined the driver of the vehicle was impaired during the time of the crash.
Police say excessive speed and impairment are both a contributing factor in the crash.
No charges or citations have been issued at this time.
Detectives interviewed one occupant of the Acura who remained on the scene, but are asking anyone with information about this accident to call 88-CRIME.
The investigation is ongoing.