Idella Kathleen Hagen (November 15, 1945 – April 18, 2015) was a former medical doctor who gained notoriety for being accused of murder by asphyxia of her parents, Idella Hagen, aged 92, and James Hagen, aged 86, with a plastic bag and a pillow as they slept in their home in Chatham Township, New Jersey, in August 2000.
A month earlier, she had returned to her parents' house from her home in the Virgin Islands because of their age and deteriorating health.
Hagen, a woman of considerable means, had previously cut short a medical career in urology in 1987 to move to the Virgin Islands to operate an inn with her second husband.