(Qasas) 28 : 33
قَالَ رَبِّ إِنِّي قَتَلْتُ مِنْهُمْ نَفْسًا فَأَخَافُ أَنْ يَقْتُلُونِ
He said: "My Lord, indeed I killed one among them, then I fear they will kill me”.
See explanation 28: 15.