A Hawaii man is facing criminal charges for using a cow bone in an attack. According to the “Star Advertiser,” Gregory Haas was arrested last weekend after he allegedly injured four men with a cow’s thigh bone. Authorities in Hawaii County say Haas attacked the men last Saturday night outside of a local bar. One of the victims was seriously injured, and is now in the hospital in serious but stable condition. A reason for the attack was not reported. Haas is now charged with one count of first-degree assault, and three counts of second-degree assault.