A 14-year-old Pennsylvania boy has been charged with barging into a neighbor's house and stabbing a couple and their 17-year-old daughter, killing the husband.

Zachary Hockenberry was charged as an adult and jailed without bail following the Sunday attack at a home in Kingston Township, near Wilkes-Barre (WILKS'-ba-ree). Authorities say the motive is unclear.

Police say Bobbi Jo Sinoracki was vacuuming when she felt like she was being punched in the back. Police say she turned around, saw Hockenberry holding a knife and realized she had been stabbed. Court papers say Hockenberry then stabbed David Sinoracki and the teen.

David Sinoracki died. Bobbi Jo Sinoracki was hospitalized with multiple stab wounds. Their daughter was treated and released.

The suspect's lawyer says he'll try to postpone the preliminary hearing but otherwise declined to comment.