article_snippet: Pictures of Mr Walker, who is from Glasgow, posted on Facebook show Mr Walker in Mr Walker Celtic football kit .
article_snippet: Mr Walker was born in the Pollok area of Glasgow and was a dedicated Celtic fan.
article_snippet: Describing Mr Walker on Facebook as a 'graduate from Glasgow Caledonian University' Mr Walker posted a series of photographs of Mr Walker in Mr Walker Celtic shirt and images showing support for Celtic and previous manager Neil Lennon.
article_snippet: Mr Walker also posted a series of photos of Mr Walker young son.
article_snippet: Mr Walker sister Harriet posted a photo online of the two of them together with the caption: 'My lovely brother.