SEATTLE, Washington (AFP) -- A woman and her boyfriend were charged with six counts of murder on Friday in the brutal Christmas Eve slayings of six people in northwest Washington state, prosecutors said.

Michele Anderson and Joseph McEnroe, both 29, stand accused of shooting to death three generations of Anderson's family, including her parents, at their remote rural home in Carnation, 21 miles (34 kilometers) east of Seattle.
If eventually found guilty, Anderson and McEnroe could face the death penalty, prosecutor Dan Satterberg told reporters at a press conference to confirm the charges on Friday.
""Given the magnitude of the crime, we will give serious consideration for the state's ultimate penalty,"" said Satterberg.
Local media reports citing court documents have said Anderson and McEnroe, who lived in a mobile home on the victims' property, had attacked Anderson's parents on Monday.
The Seattle Times reported Anderson and her partner then shot dead her brother and his wife and their two young children, aged six and three.
The couple have admitted carrying out the shootings, according to a police report cited by the newspaper.
No motive has been revealed but sources familiar with the investigation have told local media a family financial dispute could have triggered the killings.