An inquest into the deaths of three sisters from London whose bodies were found in the sea off Brighton beach has heard the cause of their deaths remains “unascertained”. The bodies of Jane Adetoro, 36, Christina Walters, 32 and Rebecca Walters, 31, were pulled from the water after a member of the public raised the alarm at around 5.45am on 13 May. The circumstances of how they ended up in the water or why the sisters, who shared a flat in Greenford, west London, were in Brighton remain unclear. Sussex Police have said there is no evidence to suggest criminality or that anyone else was involved, but specialist detectives are working to gather the full facts and circumstances around their deaths. Opening an inquest into their deaths on Friday, senior coroner Penelope Schofield assured the sisters’ grieving father, Joseph Jacobson, that the police have indicated that they are not looking for any third-party involvement.…