VIDEO: Fatal Officer Crash In Ohio

The Willoughby (Ohio) Police Department has released dash-cam video from a crash that killed Officer Jason Gresko last month.

Officer Gresko was responding to help a fellow officer, when he struck a tree after avoiding a truck that can be seen turning into the officer's path. Officer Gresko had not activated his siren, but wasn't required to under department policy, a Willoughby detective told Fox 8 Cleveland.

Charges have not been filed against the truck's driver, who took a field sobriety test and then gave a blood and urine sample.

Gresko leaves behind a wife and a 2-year-old daughter.