A 20-year-old man arrested in connection with the murder of a Lincolnshire man who had been tortured, has been released on police bail.
Lincolnshire police arrested the man, from Hampshire, on Wednesday morning.
Alan Wood, 50, died in October 2009 after being tortured for several days at his home in Lound, near Bourne.
The arrested man, who has been bailed until 1 March 2011, is the fourth man suspected of involvement in the killing to be questioned and released on bail.
Mr Wood's death has been the subject of several appeals, including one on the BBC's Crimewatch programme, and a £60,000 reward has been offered.
He was last seen alive on 21 October 2009 at his local pub the Willoughby Arms, in the nearby village of Little Bytham.