Gyakuten Saiban: Sono "Shinjitsu", Igi Ari!

Synopsis

During a Hero of Heroes Grand Prix event held at a hotel, one of the actors, Juan Corrida, is murdered, with the current Nickel Samurai actor, Matt Engarde, accused of the crime. Just after learning about the murder, Phoenix is contacted by someone known as Shelly de Killer, who reveals he has kidnapped Maya and will only release her if Phoenix can get Engarde acquitted within the trial's first day. The next day, Phoenix interviews Engarde's manager, Adrian Andrews, and investigates Corrida's dressing room. Just before the trial the following day, Franziska is suddenly shot by a sniper hired by de Killer, prompting Edgeworth, who has returned from his long absence, to take her place on the prosecutor's bench.

(Source: Wikipedia)