A brutal two-car, head-on collision unfolded Tuesday evening on Stumph Road in Parma Heights.Parma Police began chasing a suspected drunken driver around 10 p.m., and the pursuit spilled into Parma Heights.Dashcam video shows the man slamming right into an oncoming car, which triggered a violent rollover.It was later determined the driver was suffering a medical issue, and was not intoxicated.He has not been charged.Police have not yet commented on the extent of the motorists’ injuries.