Looks like Fairfax County Police are still a long way from closing the case of barnyard animals suffering knife attacks. A horse in Herndon was found to have been slashed at some point over the weekend.

A teenager from Herndon, Va. was arrested Saturday in connection with a recent spate of knife attacks on cute, cuddly animals at Northern Virginia petting zoo, Fairfax County Police said.

Is Fairfax County no longer safe for livestock? Over the weekend, four farm animals—two goats, a calf and a chicken—at the Frying Pan Farm Park were slashed by an unknown assailant.