Here is the link with the three arrest affidavits in full. I don't know how to download and share for now/later, but thought of your wanting to save information so posting it here for bookmarking
http://www.nbcdfw.com/news/local/Breakdown-of-Those-Arrested-After-Last-Weeks-Amber-Alert-for-Shavon-Randle-432186783.html
Also, a timeline which has been updated today at
http://www.fox4news.com/news/265702601-story with a few things that are saying what we have thought...
MONDAY, JUNE 26
Perkins and others went to the hotel and robbed Polley of the drugs and her property. After his arrest, he told officers he stole 22 pounds of pot. Polley reported the robbery to police -
but not the stolen marijuana.....
TUESDAY, JUNE 27
Fields and Owens try to figure out who has their dope and ask associates who talked about the weed in the hotel. Titus fessed up, telling them everything he knew about Perkins....
WEDNESDAY, JUNE 28
Lancaster police called the FBI into the investigation
FBI Agent J. Anders, through a confidential informant, learned that a man known as "Trey" told the C.I. "He was going to kidnap a child to get his narcotics back." The FBI identified "Trey" as Owens and he is charged with kidnapping.
Records show Owens cell phone and Shavon Randle's cellphone "traveled in the same direction away from the victim's residence and that the suspects called Perkins from the victim's phone before it was shut off.....
Wilkerson is charged as a co-conspirator in the kidnapping. His phone records show he had incoming and outgoing calls to a number known for Owens and to the victim's residence "and his cell phone showed to follow with the same path the victim's cellphone took when she was kidnapped." ....
ETA: I think I figured out how to at least link the separate documents
Devontae Owens arrest affidavit
https://www.documentcloud.org/documents/3883695-Owens-Arrest-Affidavit.html#document/p1
Laporshya Polley arrest affidavit
https://www.documentcloud.org/documents/3883761-Polley-Arrest-Warrant-Affidavit-Tampering.html#document/p1
Darius Fields arrest affidavit
https://www.documentcloud.org/documents/3883760-Fields-Arrest-Warrant-Affidavit-Poss-CS-PG-3.html#document/p1