Police made an arrest yesterday in connection with two blow dart assaults that occurred Jan. 12 in Pullman.

Joseph B. Gillies, 18, of Tacoma, was arrested for third-degree assault in Ellensburg, Wash., after detectives from the Pullman Police Department learned of three similar blow dart assault cases under investigation by the Ellensburg Police Department.

The first incident reported took place at about 9:30 p.m. at the intersection of Monroe Street and Colorado Street. A 20-year-old woman was standing on the sidewalk when a dart pierced through two layers of clothing and about half an inch into her abdomen.

Police learned two days later of a similar assault that occurred at about the same time on Bishop Boulevard. A male was walking near the movie theater when a blow dart penetrated about half an inch between his shoulder blades.

The detectives assessed surveillance video that revealed a dark-colored sedan being driven through the intersection at the time of the first incident, but its limited quality made the vehicle difficult to identify. A citizen with information later provided several leads which led to Gillies’ arrest.