Read the following context and answer the question.
Context: I still have a hard time imagining it myself . " He told investigators he brought his girlfriend food and water , and asked her every day to come out of the bathroom . " And her reply would be , ` Maybe tomorrow , ' " Whipple said .
Question: What may be the reason investigators said they had a hard time imagining it ?
Answer:


They could n't imagine a woman locking herself in a washroom and refusing to come out .