That's pretty ironic you would make that comparison. As far as I'm aware Manson didn't kill anyone either, just allegedly ordered or influenced others to do so, much like what allegedly Ross did.
Only that 6 people were really dead after beeing killed. There are no dead people in Ross' case.
That's besides the point. He still arranged the hits so his intent was clear even if it was a sting operation. As long as it wasn't entrapment then he's essentially attempted to have someone murdered of his own volition (though even if it was entrapment he still should have known better and was still willing to have someone killed to protect his interests).