Speculating here: Maybe Shavon lives w/ relatives bec/ birth mother was so young. Check out Laporshya's video list on YouTube. Four or five of the vids are quite offensive and a young girl walks thru the room at one point. Hard to say whether it's Shavon or not. In any case, this is no Lindbergh or Greenlease-style mega-ransom case. I think the whole thing is personal. Drug-related, retaliation, threat for custody, trafficking, plus at least a dozen other motives could be involved here bec/ it appears that the 4 POIs and victim's family are somehow connected. Maybe thru bio father or bio mother or both, but the key appears to be the parents and their circle of "acquaintances." Based on the records HIM_Darling posted, these 4 perps aren't community service-minded folks. God help that little girl, and deliver her from the hands of the criminal/s holding her.
Also, as brilliantly noted above by missgulfsouth, perhaps the "ransom" is a demand not to testify ag/ a certain person who is up for some big rap.