Moscow Murders were retaliation hit by organized drug gang

Xana Kernodel and Madison Mogen were the targets of the slayings
they were killed in retaliation for their parents (Cara Kernodle Benjamin Mogen Korie Hatrock) becoming drug informants for the drug task force. Ethan Chapin and Kaylee Concalves were also killed to send a message to the task force. Brian K seems to be in protective custody and has likely been part of the task force all along