Is it permissible for someone who has killed by mistake or شبه عمد (akin to intentional) to conceal himself and not inform the victim's guardians that he is the killer, based on what is stated in the Book of Diyāt (Blood Money) that the ‘Āqilah (the killer's kin, tribe, or community responsible for paying blood money) bears no part of the blood money if the killer confesses and admits [his crime]?

The 'aqilah (agnatic kin group responsible for blood money) is not liable for the blood money of an accidental killing unless the crime is proven by clear evidence (bayyinah), or by circumstantial evidence (lawth) and oaths (qasamah). A mere admission or confession is not sufficient. If the crime is proven solely by the perpetrator's confession, then the blood money is binding upon him alone, not the 'aqilah. This is because his concealment of the crime and his sole confession would deprive the victim's guardians of their rights.