Given what we know we can confirm that a suspect who fakes intellectual disability in order to explain his innocence in a murder is malingering.
This is the action of pretending to be ill in some way in order to avoid a certain responsibility. In this case, the suspect is malingering in order to avoid the consequences of their actions.
Therefore, we can confirm that a suspect who fakes intellectual disability in order to explain his innocence in a murder is malingering.
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