cassandra cales, stacy's sister, said she wanted peterson to take a lie detector test about his knowledge of a blue container that she saw in his garage two days before stacy disappeared. joel brodsky, peterson's attorney, denied that any container was missing from peterson's home. there were also reports of truckers referring to the containers, but their stories were treated as not credible after it was discovered that they had not been in the bolingbrook area at the times they claimed.