When Brad Sr. and his gang was killing and burying everyone close to his son Brad Jr., Boyd wasn't out there with them. It's wasn't like he was afraid to kill anyone as he showed earlier in the film when he drowned Lester.
THE PERFECT ORGANISM...IT'S STRUCTURAL PERFECTION IS MATCHED ONLY BY ITS HOSTILITY.
You missed a scene. Boyd made it clear that he wanted no part of killing the kids. I don't know why - he had no problem drowning Lester. I guess he draws the line at kids. I wonder if he was convicted of killing them as well.
shareI seen that part when he didn't want no part of killing the kids. I was talking about how Boyd wasn't out there with the gang when they killed Tommy, Lucas, and Aggie. Maybe he did draw the line when it came to the kids. I didn't see him with the rest of the gang when they were arrested and appeared in court.
The Perfect Organism, its structural perfection is matched only by its hostility.
Ash, Alien (1979)