When beloved family man Joseph Shann left his home in East Leeds on 10 December 2010, there were no signs that he wouldn't be returning. Now a team of students and academics from Leeds Beckett University and former police officers are on the hunt for vital information that could help them to understand what happened on that day and in the months and years that have followed.

If you have information that may help please contact:

• West Yorkshire Police - Use the Live Chat function online (https://www.westyorkshire.police.uk/) or call 101
• Crimestoppers 0800 555 1111
• Cold Case Unit: https://www.leedsbeckett.ac.uk/leeds-school-of-social-sciences/cold-case-unit/ Use the ‘Express Your Interest’ form or click contact Kirsty Bennett