What happened on the Criminal Minds episode the Liar?

In the "Criminal Minds" episode titled "The Liar" (Season 15, Episode 8), the BAU team investigates a series of murders linked to a con artist who uses manipulation and deceit to draw in his victims. As they delve deeper, they uncover the psychological tactics the killer employs, leading to a tense confrontation. The episode explores themes of trust and betrayal, highlighting the complexities of human deception. Ultimately, the team works to bring the cunning criminal to justice before more lives are lost.