Eight killed in Ohio "execution-style" shooting

Police release video from Ohio shooting

Man killed, dozens injured in Ohio shooting

Two police officers shot and killed outside of Columbus, Ohio

Two killed and four injured in shooting at Ohio club

Mass Shooting At Ohio Nightclub As Multiple People Gunned Down

Gunman kills 9 outside bar in Dayton, OH

Dayton, Ohio shooting: These are the 9 victims

People seen scrambling in Dayton shooting