The Warrant
Due to the fact that Shannon missed the custody hearing and was missing, the authorities issued a warrant for her arrest. She was the main suspect in this case, as it was believed that she fled with Ricky in order to prevent Michael from getting visitation rights. However, there was no proof for this theory yet.
So Much Uncertainty
Michael was haunted by many unanswered questions. Why would Shannon go to such extreme lengths in order to keep Ricky our of his life? She knew that Ricky meant the world to him, so why would she do that?