Murder and wounding (generally hurting) deliberately are connected to the victims' families. If the target remains alive, he himself is responsible for his rights, and if he dies, his family decides what to do with his rights (through law).
In any society, if someone kills another deliberately, it will be an individual crime, not a social one, although its news has emotional effects on the larger society.
A family itself is a small society with all its legal rights, options, and customs, apart from other families and the whole society, because they are related in blood and genes. So, a government or judiciary system cannot meddle in that family's choice and rights, unless the action of that family endangers the rights of a part of society or the whole.
That small society (family) can decide about the properties and rights of one of its dead or killed members, just like the family's right to the heritage of one of its members. The judiciary system or other legal organizations can not interfere in this right of the family, except for managing and legitimizing the inheritance. In this case, blood is not different with heritage, and it is relative to a family's right not a government or court.