I work with attorneys - real estate, probate, corporate litigation, business, and estate planning - If my parent was missing, and I was the recipient of general public funds for a "search" etc., I would go to an attorney - for assistance in the proper, legal withdrawal and spending of those funds. If I suspected a family member was involved, or knew something and was not forthcoming - I would want that same legal assistance and advice. but that's just because I'm around them all day every day. It's too soon IMO to worry about handling SM's estate - for now, she's married and the rules of CO and IN joint property will prevail. And short of bringing about a civil lawsuit there isn't much to be done until she is located or an arrest is made. Her joint assets are his until we are told otherwise (i.e. Trust, individual accounts, etc. -JMO)
all my own opinion.