Police outside Philadelphia, Pennsylvania in the eastern U.S. are searching for a gunman who allegedly shot to death six family members.
Police say Bradley William Stone, an Iraqi war veteran, is armed and dangerous, and may need a cane or a walker to get around.
Residents in the town of Pennsburg, north of Philadelphia, are being urged to stay inside their homes with the doors locked.
Among those Stone is suspected of killing are his ex-wife, former mother-in-law, and a former grandmother-in-law.
Some information for this report comes from AP and Reuters.