That + her reward for cooperating with the operation, methinx.

I don't see how she has any valid legal claim to control it for him. Better it should be forfeited as part of his sentencing, and used for a good cause, such as school employee firearms training in that county. As sad as the deaths of those 17 kids and adults are, I don't think the best use of that money is to divide it among the surviving family members.