"More child custody fallout. The guy didn't want his wife to move, so he made sure she wouldn't take his daughters away from him."
There are other issues hinted at besides just the move away issue that probably contributed to this tragedy.
Look again at the line on the child support. He was probably faced with an excessive child support amount while he was unemployed.
Look also at the line indicating that they had attached his property to collect that money. While federal law prevents excessive garnishment, the current child support laws allow that to be bypassed by seizing the persons property directly. What did they leave him to live on?
Now mom has nothing.
Oh yeah, right! Next logical step is MURDER?!
I get it, yeah, yeah!