Halakhah sa Levitico 24:17: Mishneh Torah, Murderer and the Preservation

[If] ten people strike him [the victim] with ten sticks and he dies, whether they struck him one after the other, whether they struck him at the same time, they are all exempt from execution by the court, as it says (Leviticus 24:17) "all the soul of man" until one [alone] killed the entire soul [of the victim]. The same law applies to two people that pushed him [the victim] or forced him into water, or many people are sitting [together] and an arrow emerges from among them and kills, that all are exempted [from court-imposed execution].