In the flick, The mom sees her son (Martin?) who she thought was dead, reports it to police, iterates he IS (not was) a dangerous man.
Later AJ/FBI Agent gets grabbed from below the bed in mom’s house, doesn’t say much about it.
Q: If mom thought son was dead, who was living in her basement and why don’t the police/FBI think it’s a BIG deal and why if mom thought her son has been dead does she say he “is” a dangerous man?
Because she just saw him.