Mangione was arrested at a McDonald's in Altoona, where he reportedly gave local police a fake ID and began trembling when questioned about recent travel to New York.
A breakthrough came when Mangione, 26, briefly removed his mask while trying to flirt with someone at a Manhattan hostel, providing a clear look at his face.
Friends suggest that the shared tragedies between the Pistorius and Greyling families brought them closer together, and their relationship symbolizes a new beginning for both.