If these guys are still in jail, then the guy who took the beating must still be continuing with the charge. From jail to court and charge is very simple here. If the charged are taken to court and there is no charge (a victim pressing charges there and then) then the judge just frees them within 24 hours. If there is no victim to place charges then the court/jail can not hold them more than 24 hours (not the same as the 72hour holding rule) If there is a court date and the victim does not show up then you are automatically released, a citation to both is sent out and if on the second time the victim does not show up then it is dropped entirely.
So, there must be a victim pressing charges here, this is not the UK where the police press the charge if the victim won't. If the victim is pressing charges against these two for something they had nothing to do with, isn't this a bit strange?