Does contributing financially to the emancipation of a killer, by paying blood money to the victim's family, suffice as expiation for emancipating a slave or for fasting two months?

The aforementioned contribution to the blood money for killing is not sufficient for its expiation, because the expiation for killing is the freeing of a slave. If one is not found, then it is fasting for two consecutive months. Neither the blood money nor reconciliation has any relation to the expiation.