To determine the settlement amount, they must of added up all the potential, now impossible, strong-arm robbery "earnings".
He is literally worth more to them dead than he ever was or would have been, alive. Cold but true.
And it still seems like a lot, but if you consider the loss of "earnings" from the future progeny that will now not be conceived (not to mention the public assistance these descendants would have received), the family settled cheap.
It may not look like it initially, but the lawful taxpayer comes out ahead.
Hmmm, perhaps I'm not the cynic I have assumed, and am actually a "glass half full" type of personality.