An 11-month-old baby girl, taken from her mother by Colorado authorities after her boyfriend admitted to smoking marijuana, was allegedly killed by her foster mother, reports ABC7.

Sydney Danielle White, 20, of Grand Junction took an unresponsive baby, Angel Lane Place, to Children's Hospital in Aurora, telling hospital staff that she had "accidentally dropped" the infant.

White later admitted to authorities that she had shaken the baby out of frustration because she couldn't get her to stop crying....