You are correct.
Last date Relisha Seen -- March 1st
Contractor Bags purchased by Tatum March 2nd
Tatum seen (or Phone Pings) place him at Park
I haven't mentioned this before ---- because I really didn't want to think about it, but could he have taken other children before Relisha and this Park is a dumping ground for him?
I am not sure about him and a dumping ground however... I think he has done this to a child before just maybe hasn't disappeared them before.