Police investigating the death of 47-year-old Simon Hammond in Stoke-on-Trent are now treating the death as unexplained.
They started a murder inquiry after Mr Hammond's body was found in his flat on Matthews walk int he Hanley area of the city.
A post-mortem examination has found he died form head injuries.
The area around the apartment block will stay cordoned off while forensic searches continue.
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Rescue teams arrived at the scene to find the two men standing on top of their car roof.
Rain and low cloud will clear to the south leaving a dry night with light winds.
Winds to ease through the evening allowing temperatures to fall steadily with a widespread frost developing.