In the petition, the sister of the accused woman claims the crime was committed under her brother’s direction.

The teen's 11-year-old sister told King County detectives that she survived the mass shooting by playing dead, according to a court document.

Five members of the Humiston family were found fatally shot, leading to murder charges against the eldest son, per police

A 15-year-old boy accused of killing his parents and three of his siblings this week east of Seattle tried to pin the slayings on his younger brother, but a sister who survived after playing dead escaped to a neighbor's house and told police who really carried out the shootings,