To question the killer till he confesses
حَدَّثَنَا حَجَّاجُ بْنُ مِنْهَالٍ، حَدَّثَنَا هَمَّامٌ، عَنْ قَتَادَةَ، عَنْ أَنَسِ بْنِ مَالِكٍ ـ رضى الله عنه ـ أَنَّ يَهُودِيًّا، رَضَّ رَأْسَ جَارِيَةٍ بَيْنَ حَجَرَيْنِ، فَقِيلَ لَهَا مَنْ فَعَلَ بِكِ هَذَا أَفُلاَنٌ أَوْ فُلاَنٌ حَتَّى سُمِّيَ الْيَهُودِيُّ، فَأُتِيَ بِهِ النَّبِيُّ صلى الله عليه وسلم فَلَمْ يَزَلْ بِهِ حَتَّى أَقَرَّ بِهِ، فَرُضَّ رَأْسُهُ بِالْحِجَارَةِ.
Narrated Anas bin Malik: A Jew crushed the head of a girl between two stones, and the girl was asked, "Who has done that to you, so-and-so or so and so?" (Some names were mentioned for her) till the name of that Jew was mentioned (whereupon she agreed). The Jew was brought to the Prophet (ﷺ) and the Prophet (ﷺ) kept on questioning him till he confessed, whereupon his head was crushed with stones.