A speeding motorcyclist was killed yesterday after he slammed into a car in Neenah.

It happened just after 1 p.m. at a south side intersection. The State Patrol said the car was turning left in the path of the oncoming motorcycle, driven by a 21-year-old man.

Witnesses said the biker was going so fast, they thought he was being chased by police. One witness told officers the cycle had to be going at least 100-miles-an-hour. Two 16-year-old girls and a 12-year-old girl who were in the car were treated at a Neenah hospital and later released. The crash remains under investigation. Authorities say they'll release the victim's name today.