I think he was. The motive began as them deciding they needed Sophia. I think showing Jake's rage is important for motive. They need to also show this family operated together.
If everyone will give me a pass for just a minute I am going to introduce a theory that may get removed or may get me removed.
Today Kendra testified she listened in on a phone call between Jake and Hannah after Hannah and Corey began dating. Jake told Hannah that if she (Hannah) was going to let SW be around THAT then he was going to take her (SW) away from Hannah. A few minutes later Kendra mentioned Corey's
sister and her wife. Then later Corey testified that Hannah was moving into his house and that he lived next door to his sister and her wife. He said they were fixing up a room for SW and the baby after she was born. He then testified about Jake coming to his house furious to get SW. Corey said it twice. He was really mad at Hannah. He sat on my couch.
Keep in mind how religious and self righteous FW and the rest of the family are. Their own church on the property? Living at the foot of the cross as we have heard. George asking for solitary so he could read his Bible? Jake stating his family didn't celebrate Halloween. First place they headed in AK was to a church who's pastor they knew back in Ohio.
I think the murder plan was hatched around the same time as that conversation Kendra heard, last of December 2015 or January 2016. AC said Billy was the first to say anything about killing Hannah. Billy came in and said they had to kill Hannah. According to Jake he told his father, No, not happening, but then later agreed it had to happen. I think AC said "they didn't want to do it but agreed it had to happen."
I am going to consider that Jake and the whole W family went batshyte crazy when they found out Hannah was planning to move SW and KR in next door to a same sex couple who happened to be closely related to her boyfriend Corey and therefore both SW and KR would be exposed to those close relatives. Kind of like those protesters that march around with signs saying
SAVE THE CHILDREN!!!!
Not trying to step on toes with this theory, and
it certainly is not my belief or opinion, but I could see it being FW's, Billy's, Jake's and George's.
Just a theory to explain why George got involved in something that was basically Jake's problem.
JMO