After arresting the killer, you'll be asked to follow up with some of the characters associated with the murder you just solved. You may need to help or talk to them to gain some extra inside information!
You must complete a Case's Additional Investigation in order to unlock the next Case (except in Case 1).
To complete the Additional Investigation, follow these steps:
1. After arresting the killer, open the "Tablet" to view your tasks, then click on "Unlock" to gain access to the Additional Investigation.
2. Carry out all the actions listed in the Tablet menu.
Each time you finish helping a character, they will reward you with either Coins, XP, a Burger or an Avatar Shop item.
Completing all the tasks in the Additional Investigation will earn you a Silver Medal!