Shawn had a falling-out with his brother, Liam when he discovered that the wealth in his father's safe was missing, blamed him, and called the police. This caused Liam to join the Dark Fae soon after making bail. His death is predicted by the Banshee, Siobhan, during Fae Day. Bo and Dyson locate Liam so that Shawn can say goodbye to his brother, but Liam refuses.
After his mother died (eighty years after Liam joined the Dark), Liam hired a goblin to kill his brother. This information is extracted through Bo's powers. Liam's reasons were that the whole family thinks he's nothing because he's Dark, and it is all because of Shawn.
Bo calls for an Agallamh to settle the differences between Shawn and Liam. Initially, it doesn't appear to go well, and Liam is moving for closure, but Bo calls for a 4-hour break, during which Kenzi runs to the Kavanaugh household and arrives back at The Dal with Shawn and Liam's father, Patrick. He confesses that he had taken the money from his safe to cover his gambling losses. Shawn realizes his error, apologizes to Liam and offers the family pendant. Liam accepts, calls off the hit on his brother, and the Agallamh ends with a peaceful resolution.
At sundown, Liam and Shawn have reconciled their differences, and it seems that the banshee had been proven wrong, when suddenly, a man whom Liam had ripped off earlier ran in and tried to shoot Liam. Shawn quickly moved in the way and was shot and killed.
- 1.09 Fae Day