SIX ATTACKED IN MA STABBING SPREE.

LINSEY DAVIS (ABC NEWS) (Off-camera) All right, got to pay attention to that PDS warning in particular. Somara, thank you. Next tonight, a terrifying holiday attack. Four girls stabbed by a knife wielding suspect at a movie theater in the Boston area. Police describe the attack as random and unprovoked. A suspect is in police custody tonight. Authorities say he may be responsible for a similar incident in Plymouth. ABC's Reena Roy has the latest details. [ABSTRACT FROM PUBLISHER]