Continuity mistake: Various views of Chase's dead body were inconsistent. From the two boys' perspective, Chase's body was at the edge of the water and the sun was shining on the water and along/near his left leg. An aerial view showed a canopy of tree leaves over the area, meaning the sunshine would not be able to penetrate the thick tree cover. From the sheriff's view in the tower (unobstructed by trees), the position of Chase's body relative to the fire tower was too far away and at the wrong angle. (00:03:00 - 00:04:08)
Character mistake: The Sheriff's Department knew there was little/no evidence at the murder scene, but they did "have those red fibers found on the jacket - sweater, scarf, could be anything." After overhearing bar patrons saying the Marsh girl could be the killer, the Sheriff and a Deputy went to her house, apparently without a warrant or probable cause. They went into her screened-in porch, the Deputy saw a red wool hat through the window, said it was "in plain view" and took it. The hat was illegally seized. (00:04:50 - 00:06:45)
Character mistake: Without probable cause or exigent circumstances, the Sheriff's Deputy went into Kya's house and confiscated the red wool hat. (If evidence is seized in violation of the 4th Amendment, it is not admissible in court. "In plain view" was not relevant under the circumstances - they had no evidence that the red fibers came from a red wool hat.) He carried the hat outside (without wearing gloves or putting it an evidence bag) then handed it to the Sheriff, who also was not wearing gloves. (00:07:06)
Character mistake: Lawyer Tom was in the bar when locals were speculating that Kya killed Chase. He told Kya that people in Barkley Cove call her "Marsh Girl" and "When you stand trial, you will be judged by a jury of your peers from Barkley Cove." In the courtroom, people were shouting "She's guilty" and "We all know she's guilty." The judge pounded his gavel and said, "We will now begin jury selection." Tom and/or the judge should have filed a "Motion for Change of Venue" to ensure a fair and unbiased trial. (00:10:23 - 00:29:44)
Factual error: On July 4, Kya waits for Tate, watching the sun set and the fireworks at night. She falls asleep on the shore and wakes up in the same position, watching the sun rise. So the sun sets and rises in the same position. (00:55:40)
Character mistake: Kya's brother is wearing his dress uniform with the blue infantry shoulder cord on the left side. It should be worn over the right shoulder.