Angelo's Stand ability was brought forth by the mysterious bow and arrow, and apparently they're also connected to DIO. After defeating Angelo, Jotaro thought that the danger had left the city, and tries to find the whereabouts of the bow and arrow. A few days later, Koichi is walking home with Josuke, and they pass a house that should be empty...
Do you wanna know why
I shot him with the arrow?
هل تريدُ أن تعرف لماذا أطلقتُ عليه السهم؟
Willst du wissen,
warum ich auf ihn geschossen hab?
¿Quieres saber por qué le disparé?
¿Sabes por qué le he disparado?
Tu veux savoir
pourquoi je l’ai planté ?
Vuoi sapere perché l'ho trafitto con una freccia?
Quer saber por que eu 
disparei uma flecha nele?