The Messenger of Allah ﷺ gave judgement that the killer should have what was taken from the man he killed, and did not make this subject to division into fifths.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَضَى بِالسَّلَبِ لِلْقَاتِلِ وَلَمْ يُخَمِّسِ السَّلَبَ