Chelsea Ellen Bruck , 22 , was last seen in the early hours of October 26 in Frenchtown Township , Michigan dressed as the Batman villain Poison Ivy . Police searched an area near a Ford Motor Company plant in Michigan . The sheriff 's office declined to discuss media reports that part of Chelsea 's costume were found . She was last seen in the parking lot with dark-haired man at 3am . The party had to be shut down after numbers swelled from 800 to 500 people .
Chelsea Ellen Bruck , 22 , was last seen in the early hours of October 26 in Frenchtown Township , Michigan dressed as the Batman villain Poison Ivy . Police searched an area near a Ford Motor Company plant in Michigan . The sheriff 's office declined to discuss media reports that part of Chelsea 's costume were found . She was last seen in the parking lot with dark-haired man at 3am . The party had to be shut down after numbers swelled from 500 to 800 people .