Niazai from Afghanistan was using a poorly made prosthesis that was creating some serious infection to his leg. After meeting Marco, an engineer from Trieste, Italy, he received a 3D Printed Prosthetic leg with DeltaWasp 20 40 design, free of charge. Later, he also received a new home from Trieste Refugees Association.
Source: http://3dprintingindustry.com/news/meet-marco-avaro-3d-printing-pioneers-81275/