The bodies of seven family members have been found in a flat in Texas.
Police said the victims had opened their Christmas gifts and started cleaning up the wrapping paper when they were shot.
They said that one person apparently attacked the other six before committing suicide.
"It appears they had just celebrated Christmas. They had opened their gifts," said the police sergeant in Grapevine, Texas.
The four women and three men were all found in an adjoining kitchen and living room area when police entered the flat, near Dallas.