Car slams into parked vehicle, hitting police officer and pinning bystander against barrier.
Ohio police have released dashcam video of a horrifying interstate crash.
Officers were on the scene of an accident in Cincinnati earlier this month when a woman lost control of her car and plowed into one of the crashed vehicles.
Cheryl Merz's Mercury Grand Marquis struck a Nissan Sentra involved in the first crash.
The Sentra then struck police officer Michael Flamm and driver James Mastin.
Flamm was thrown over a barrier, while Mastin was pinned.
Both men were injured, but survived and are now recovering.