There was a history of abuse where Xavior was removed from the home. So, that would even give credence to the ability to harm. I'm with you. Her abilities do not rule her out.
May 27 marks two years since Xavior went missing from the trailer he shared with his mother when SH says she heard him leave (but did not see him) when the doors chimed as he exited their home and vanished, leaving his trusted bicycle behind.
Yes, SH had a long history of low-level drug offenses (and endangering a child) throughout XH's life that were all resolved similarly to her last brush with the court-- suspended sentence and probation. To my knowledge, SH has never been ordered to serve jail time. IMO, the company SH kept was never good for her or for XH.
Without any crumbs by authorities regarding XH's cause of death or manner of death, I'm inclined to believe LE found no evidence of a fatal attack or injury to XH in the trailer. However, we also know that XH didn't move his own body to the soybean field where he decayed for months before being located.
Given nothing here but speculation, I think this was most likely an accidental drug-related death where two persons moved the young boy's body nearby --but never expected it would take so long for him to be discovered. Actually, I'm really at a loss about this sad case. JMO