He has worked closely with other survivors, and with organisations representing the families of Srebrenica victims, to design and build the memorial, which contains 10,000 burial sites designated for victims.
Hasan je blisko surađivao s ostalim prežvjelima i s udrugama koje predstavljaju obitelji srebreničkih žrtava na projektu i izgradnji memorijalnog središta, koje ima 10.000 grobnih mjesta za žrtve.