A judge has heard arguments in the case of a 12-year-old boy who was declared dead by Washington, DC-based Children's National Medical Center, but he held off making a decision until he can hear from the family and medical experts. The boy has brain cancer and has been in the hospital since June 1. The hospital says that he has no brain activity, meeting the legal definition for death in Washington, DC. Doctors declared him dead, and the hospital is asking Judge William Jackson to affirm its judgment that the boy can be taken off life-sustaining equipment.