Are you aware of how much she has already received in death benefits from the Public Treasury?  Has his Union paid additional benefits to defray burial expenses, life insurance payouts? survivor benefits? etc. [if not. what in the world do they do w/dues collected, included in his State pay??]  How much over the wage most Alaskans live on was he receiving? - allowing responsible people to save for their family's security under the possible outcomes of his job?  
Certainly there are some Ak State Troopers that treat their job as an invitation to scam the Public for all sorts of illicit benies [many much more criminal than those you list] - but AST almost never collects evidence against their own - [another freebie]. Certainly from everything I know of the man [and I did have field interactions w/him], Sgt Johnson was not that sort.  Don't let his widow bring him down now.