The description from the survivors is that there were two separate and sequential incidents. Incident #1....the wife gets fatally injured. Incident #2......while trying to assist the wife, the husband is fatally injured. 100,000+ sea miles of double handed experience. How to respond to an...
I imagine the USCG are going to conduct a careful investigation. There is enough here for their antennae/sniff test to start pinging. The coroner's report will be step #1.