Ghulam Mejab Khalid

Ghulam Mejab Khalid was a mailman who knew Abu Mousa on a superficial level.

Before Trinity
Sometimes when on his mail round, Mousa would invite Khalid into his apartment to pray with him, as it was more convenient than doing it in the back of his mail van.

Trinity
Jack went to see Khalid, who explained that he barely knew Mousa. Jack realized it was a dead end and left.