From the caption at YouTube:
A Republican staffer (and Iraq War vet) has hot coffee poured down his back by a Strickland supporter while trying to videotape Gov. Strickland’s remarks at a campaign event. The assailant later returns to make an obscene gesture. Authorities are trying to identify the man in this video. If you can assist, contact the Scioto County Sheriff’s Office at (740) 355-8245.