From a New York Daily News article:
A 28-year-old mother killed two of her children and severely injured her two others during a botched exorcism attempt, police said Saturday.
Police described a shocking bloody scene at the Germantown home Friday morning when they found a 1-year-old and 2-year-old dead in a home due to multiple stab wounds. A 5-year-old and 8-year-old were also injured and are receiving medical treatment, Montgomery police said.
Police announced Saturday the mother, Zakieya Latrice Avery, 28, and another woman, Monifa Denise Sanford, 21, were trying to perform an exorcism on the children. They were both charged with two counts of murder and two counts of attempted murder.
A Maryland TV station reports Avery might have recently sought help from mental health professionals. See the video report from WJLA ABC 7.