That's the way it worked very well for a long time. I agree. It appears to be a pretty sick business, all around.
Do you want to know what I think happened? Too bad, I'm gonna say it anyway!
PURE SPECULATION: Chris and his wife, who had their problems, noticed their child was not as tall/big/etc. as he "should" be at his age. Whether this was true, or if it was a warped perception due to being around large, muscular, overgrown people due to their occupation, is up for debate. Maybe his wife convinced Benoit to give their son HGH to "help" him...I noticed during the tribute, the picture of their son Daniel was one where his forehead head looked too prominent--a side effect of HGH. The unauthorized use of HGH (from who knows what source) led to health problems with the boy--possibly serious health problems--and likely much friction with the couple.
My thought is that Daniel got sick, Benoit went home, was angry at his wife for convincing him to go along with this scheme, killed the wife, "put the child out of his misery", and killed himself. He might have sympathized with his wife, and definitely symphathized with his innocent son...that's why Bibles were placed by their bodies. He likely bamed himself, ultimately, for the whole ordeal, and committed suicide, leaving no Bible behind, thinking himself unworthy of forgiveness.