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...
This talent that the man 
named DIO called a "Stand."
هذه الموهبة التي أطلقَ عليها الرّجُل
المدعو ديو اسم ستاند
Dieses Talent, welches der
große Dio einst einen Stand nannte.
Me refiero al talento que el hombre
llamado Dio bautizó como Stands.
Me refiero al talento que el hombre
llamado Dio bautizó como Stands.
Il y a longtemps, un homme du nom
de Dio avait dénommé ça un Stand.
È il potere che l'uomo
di nome Dio chiamò Stand.
Havia um homem chamado Dio
que chamava esses talentos de Stands.