Who's Dying Now‪?‬

Mack Sterling is an emergency room doctor at the Estes park, Colorado hospital.  His girlfriend, Rachel West is a nurse on the pediatric ward at the same hospital.  Mack's cousin, who he hadn't seen in a year was murdered a few miles from the hospital and the next day, Rachel is kidnapped.  Can Mack and Rachel and their new close friends figure out the clues before anyone else dies?