A 22-year-old man who was also arrested on suspicion of murder is undergoing treatment for injuries sustained before his arrest.
He remains under police guard in hospital.
A 49-year-old woman held suspected of murder was this week freed on police bail and is due to return to Woking Police Station on August 29.
More top news
Holly has Thursday's weather
A special ceremony has been held in Brighton to remember an African slave boy who died in the city on this day (20th June) in 1870.
Fred and Sangeeta introduce our coverage of the independent panel's report into hundreds of deaths at Gosport War Memorial Hospital.