Have not read all previous threads so apologies if already discussed. With regard to the 911 call, dispatch said they heard screaming but did not indicate they heard conversation. JC said when JP came into the bathroom he told her mom to hang up the phone (JP doesn't mention the phone or knowing DC had called 911 at all in his account). They had to be pretty close to each other in the bathroom, I would expect the dispatcher would have been able to hear him say that if he did (and if dispatch heard a voice say "hang up the phone" I would expect LE would have known for sure they were heading into an active crime and radioed to have a backup follow the only car leaving the area).
Also, JC said JP told DC to tape JC's mouth, and she did. She doesn't mention that it was JP that did it or that it went all the way around her head either (and that would have been memorable because duct tape in hair is not just "coming off", that is either getting cut out which there would be evidence of, or painfully ripping hair from the scalp). However, JP says he gave DC the roll to tape JC's mouth but she was struggling so he did it himself. And he said he wrapped it all the way around her head, and then did her ankles and wrists too. So why did he add that embellishment when it doesn't appear to be what he did. JP also says he had two pair of gloves on, how was he able to work with the Gorilla duct tape roll at all with two pairs of gloves on?
And the timing seems almost implausible, I don't know why it jumps out at me, but the call came in at 12:53 and in that time he gets into the bathroom, struggles with some duct tape with gloves on, wraps her head, hands, and ankles, shoots DC, picks up JC and struggles to get her out of the house (slips in blood, tries to carry her, etc), then drags her across a yard, stops to open the drivers door and pop the trunk, drags to the trunk, lifts her and gets her into it and then gets in the car and removes his mask and leaves the driveway...that just seems like a lot to do in 7 min for the average guy. (and we don't know if DC started the call right after the shots were fired, if so then JP also says he ran around and checked the rest of the house before forcing his way into the bathroom, so add that into the 7 min)