Bones S3 E8: The Knight on the Grid
Booth and Brennan's investigation into the death of an archbishop leads them back on the case of the Gormogon serial killer when the archbishop's kneecaps were discovered to have been surgically removed. They realize that the killer has a pattern for choosing victims after Angela finds a victim tree in the evidence vault. The team attempts to make predictions on who the next victim is while Dr. Sweets provides psychological insights into the killer for Brennan and Booth. Meanwhile, Brennan's brother reappears.
