Meanwhile , Booth is annoyed his ex-girlfriend Rebecca , the mother of his son Parker , is letting Parker spend so much time with her new boyfriend .
However , the immediate prime suspect , Richardson 's husband , has also disappeared .
Booth is annoyed prime suspect 's ex-girlfriend Rebecca , the mother of his son Parker , is letting Parker spend so much time with her new boyfriend .
However , the immediate prime suspect , Richardson 's husband , has also disappeared .