Officials at a St. Louis hospital on Thursday defended their actions in the case of a homeless woman who sought treatment for a sprained ankle and died in police custody after being arrested for refusing to leave the emergency room. An autopsy determined that Anna Brown's death in a jail cell in September was caused by blood clots that formed in her legs and migrated to her lungs, the St. Louis Post-Dispatch reported. The newspaper also obtained surveillance footage of the woman's final moments....