In 2012 Sim admitted that, after the assassination, she had been incarcerated in a prison and then held in a mental institution for nearly a month, before she was released.
Pada 2012 Sim menyatakan bahwa ia ditahan di sebuah penjara setelah pembunuhan tersebut dan kemudian dimasukkan ke sebuah lembaga mental selama hampir sebulan, sebelum ai dibebaskan.