Multiple mentions are made of a "Stand Your Ground" law which supposedly allows trespassers to be shot. That is NOT how the Stand Your Ground law works. SYG laws remove any "Duty to Retreat", but in no circumstances are you allowed to shoot people who are not imminently threatening violence. While the people quoting the law may be intentionally trying to mislead, both Shaw and Greene (a lawyer) would know this was not true.
When Colter opens Mia's van, although it is disorderly, the interior is clean and there is no dust on any of the surfaces, despite the van supposedly having been left in the woods for three months.
The whole reason Mia Stine was killed was to prevent her testifying that Eric Winslow burned down someone's house to gain their property. She was told this by Eriç's son Matt. However, since Mia did not directly witness anything, whatever Matt told her would be considered hearsay and not admissible in court. So there would have been no reason to have her killed.