A coroner's heard how a man strangled his partner before drowning himself on a boating holiday on the Norfolk broads.
Her 13-year-old daughter was left alone with him on the cruiser for almost a week before he committed suicide. Divers recovered the bodies after a hire company raised the alert.
Detectives believe John Didier planned the killing before setting off on holiday from London.
Malcolm Robertson reports...
Inquests will be held into the deaths of a couple whose bodies were discovered on the Norfolk Broads after a 13-year-old girl was found alone on a boat.
Police found Annette Creegan, 49, from Mitcham, south west London, and John Didier, 41, originally from the US, dead last September.
Divers launched a search of the River Bure after the girl was found alone on board the family's rental boat moored in an isolated inlet between Wroxham Broad and Salhouse Broad.
Norfolk Police said the circumstances suggested it was a "domestic incident".
A post-mortem examination found Ms Creegan died from strangulation while Mr Didier died from drowning.
Ms Creegan worked as a community nurse for the Trinity Hospice charity in Clapham Common, south west London, while Mr Didier had worked for the NHS.