The Gun Show

R&I, Castle, L&O Crossover. Rizzoli is sent to Springfield Illinois to a Law Enforcement gathering called LETO. There she meets new friends and signs up for some exciting Cop games. But trouble comes in the form of accidents and a dead body. Together with her new friend Beckett, she must find a killer and win the most intense game in existence. Pre Rizzles/Caskett but some implying