Date: 13 Mar 2011
Dariusz Michalowski disappeared from his home in Birkby, West Yorkshire on 13 March 2011.
The police have said that whilst no body has been found they believe that he might have been murdered and in May 2015 they arrested three men on suspicion of his murder but they were released without charge.
Dariusz Michalowski had reported being attacked a month before he disappeared in February 2011.
Dariusz Michalowski had come to the UK for work and had a wife and child in Poland with whom he was in regular contact.
He was last seen on Sunday 13 March 2011 at his home on Macaulay Road at about 2.30pm.
His passport was found at his home.
He had been doing temporary jobs including gardening and labouring and had recently been working at the Nostell Priory estate near Wakefield as a gardener.