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
Friday morning's forecast for the west of the region
Friday morning's forecast for the east of the region
Millions of voters headed to the polls to vote in today's local elections. Here is when the results are expected in.