Swan had recently escaped an abusive cult led by a man named John Campbell.
The "mockumentary" format allowed for unique character moments that highlighted the team's varying personalities: [S5E7] Swan Song
The story kicks off when , the lead guitarist of an up-and-coming rock band, is found murdered in his trailer. Because a documentary crew was already following the band to capture their rise to fame, the Mayor orders the NYPD to allow the cameras to stay—this time following Castle and Beckett as they solve the crime. As the investigation unfolds, the team discovers: Swan had recently escaped an abusive cult led