Exactly two years after his wife died violently inside a cruise ship cabin, a California man admitted he killed her.
Robert McGill, pleaded guilty to charges of second degree murder in federal court in San Diego Thursday.
McGill and his wife Shirley were aboard the Carnival cruise ship Elation as part of a cruise to Cabo San Lucas to celebrate their retirement.
The ship left San Diego on Saturday, July 11, 2009 and spent two days in Cabo San Lucas. During the final leg of the trip, ship staff responded to a report of a domestic dispute between a husband and wife, according to the FBI.
When the staff arrived to the cabin they found the body of 55-year old Shirley McGill. Robert was found outside the cabin and detained by crew members until his arrest.
In court Thursday, McGill acknowledged he deliberately and intentionally killed his wife on the trip that was supposed to celebrate her retirement from the DMV.
Robert McGill taught an independent study program in Canoga Park, and had worked for the Los Angeles County Office of Education since 1979.
He now faces life behind bars and a $250,000 fine when he's sentenced Nov. 8.