BRIDGEPORT - Walbert Perez, 27, is expected to be arraigned today on charges that he assaulted and terrorized his girlfriend.

Police say that Perez threatened to kill his girlfriend and that she had to lock herself in a bathroom to call 911.

After police arrived, Perez was uncooperative and had to be Tasered. They also believe that he was on several drugs, including cocaine and PCP, at the time of the incident.