Actually, barking is mentioned by both the neighbour and the roommates
(the question is, at what part of the attack did it begin):
__ told me the following: He woke up a couple of times Saturday night. He looked at the clock, saw it was 04:17 hours, and said after about 5 minutes of waking up he heard a dog barking, outside, from the direction of 1122 King Rd. __ said he was going in and out of sleep and after an hour, around 05:00 hours, he still heard the dog barking otside from the direction of 1122 King Rd. __ said his bedroom is on the far north east side of ___ Walenta and is closest to the backyard of 1122 King Rd. __ said there is a motion light outside of his window and said if it turned on he would have noticed it. __ told me he has lived in this residence since January and has not heard the dog barking outside before in the middle of the night.
Source: supplement 14.
D said she woke up at around 04:00 hours on 11/13/2022 [---] and could hear Murphy barking.
[---]
D said she hear Murphy barking a lot around 04:00 hours 11/13/2022 when Kaylee went upstairs. D said she heard Murphy go outside barking as well.
Source: supplement 42.
At around 04:00 or 04:20 hours, B heard what she thought was a firework and saw a spark on the ground from under her door. B then heard Murphy barking.
Source: supplement 89
B told me prior to hearing the firecracker she thought she heard Murphy bark, she also heard what she thought was the beer pong table moving and cups falling. The beer pong table was located in the living room which is above B bedroom.
Source: supplement 90
B stated Murphy would primarily sleep in Kaylee's room and if Kaylee was not home he would be left in the room.
Source: supplement 90
So Murphy did bark at some point. And was probably sleeping in Kaylees room and totally used to all kinds of people walking up and down the stairs. Until something alerted him. (I had forgotten he is half-poodle and that broke my heart, these are super gentle and super loyal dogs).
And what was the flash, the fireworks? I had an idea that maybe if BK was surprised by Xana when coming downstairs, could he have accidentally dropped something like a flashlight as he charged after her for an attack? Or where was Xana's phone (a danger to BK) durirng the initial confrontation? But then I realized it was the wrong floor, the floor BK never entered? Did Xana turn on the light for a second? Or did B imagine this light, as her brain tried to make sense of the noise and she just opened her eyes?
Also. WHY did BK leave his home and drive towards the house at the moment he did? If KG was indeed the main target, how did BK know that she was at 1122 at all?
at approximately 2:53 a.m. on November 13th, a white sedan, which is consistent with the description of the White Elantra known as Suspect Vehicle 1, was observed traveling southeast on Nevada Street in Pullman, WA towards SR 270. SR 270 connects Pullman, Washington to Moscow, Idaho. (supplement 136 - he is already on his way with all the gear)
B said at approximately 02:00 hours on 11/13/2022, Madison and Kaylee came home from a night out. (supplement 3)
D said she believed Maddie and Kaylee arrived home at around 01:30 or 02:00 hours on 11/13/2022. (supplement 42)
G stated at 01:45 hours on 11-13-22 he was contacted by Kaylee again and asked if he could pick her and some friends up at the Grub Truck. G arrived at the Grub Truck at around 01:49 hours. G took Kaylee and Maddie home, he stated it was a 3 to 4 minute drive from the Grub Truck to 1122 King Road. [---] G texted Kaylee he was there and she stated they would be there in a second and said they were at order 75 and theirs was 78. Kaylee and Maddie came to the vehicle a short time later. (supplement 113)
So Kaylee and Maddie arrive home at approximately 2:00 - 2:15.
BK leaves towards 1122 at approximately half an hour later.