Upon whom is the blood money due for a person who was killed by mistake with a firearm, then his body was transported and placed under a train to conceal the crime? And how much is it? And is the blood money decreed upon the killer or upon those who transported the body if they are imprisoned?

The killer here is the one who accidentally fired the projectile. The blood money (Diyah) in accidental killing is legally borne by the killer's 'Aqilah, who are his male relatives from his father's side, and it is paid in installments over three years.

The killer alone is responsible for the expiation of killing, which is the freeing of a believing slave. If none is available, then it is fasting for two consecutive months.

The blood money is legally established for the heirs of the deceased, unless they waive it.