Until we've seen the context of Barb and Kayla's interviews, we have no idea how they gave the statements. I truly believe Kayla's were exaggerated and downright made up in areas. Like Brendan, she was just a child, in a very adult situation. If we can accept that Brendan would lie about raping and slitting a woman's throat, it shouldn't be a huge leap to believe Kayla could have lied in her statements for whatever reason as well. Personally, I felt for her on the stand, I found her tears to be real, and found her to be distressed. No one likes to admit in open court they made up stories, and I think she felt bad for what she did. She was given the chance to go back and affirm her original statements and continue lying (plenty of witnesses have), but she didn't. JMO
I don't put much weight on Barb's statement, as blood was not cleaned off that garage floor w. Bleach, at least not the bleach that bleached Brendan's pants. Blood cleaned w. Chlorine bleach (the type that bleaches pants) does not prevent luminol hits, because it doesn't remove the hemoglobin. Chlorine bleach can also contaminate crime scenes by having the whole scene glow, making it impossible to identify trace blood. AFAIK, this did not happen in Brendan's case. I agree that the pants were bleached, but I do not believe they were bleached cleaning Steven's garage, or it was a different day and Barb didn't notice until the 31st. Interestingly enough, she fails to mention the blood Brendan claims he cleaned off his pants, and notices none of the other stains that were shown during his trial, which the State of course made no attempt to identify.
As for truth in Brendan's statements, you are completely right, we can never know the truth, as by this point his statements were so contaminated w. Coercion and lies and contradictions everything needs to be called into question. Any statements, however, that he tries to stick to even when cops are leading him in the other direction should be looked at as potentially true, as well as things he gives them repeatedly on his own. I believe the story of playing play station is probably true after he got off the bus is probably true, I think the story of not being able to shoot a gun because his family cat got sick and had to be shot is true, and I think he saw Chuck and Steven in the garage the day after the murder talking and working on his car. These are things he came up with on his own and tries to stick with even when LE attempts to change the subject or downright tell him he's wrong. There are more, but nothing super relevant to the murder, IMO.
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