Two 12-year-old boys were in police custody after allegedly dropping a shopping cart four stories onto a New York City mother who was out buying Halloween candy for underprivileged children. Marion Salmon Hedges, a wealthy Manhattan real-estate agent, was struck in the head by the falling cart on Sunday while walking outside a Target store with her 14-year-old son in East Harlem, the New York Post reports. Gaurav Patel, a doctor who witnessed the incident, performed CPR on Hedges, who was later transported to Harlem Hospital where she remains in a medically-induced coma. "We heard a little boy just screaming,"...