The man who died in a rural accident on Tuesday was an experienced builder, and father of two.
The PSNI and NI Health and Safety Executive were yesterday still examining the site where the fatal fall occurred.
The man and a colleague fell about 15 feet from a steel frame onto the concrete floor of the almost-completed building at Derrycarne, north of Portadown.
They were building the shed for sheep farmer Ivan Reilly, president of Derryadd Apprentice Boys.
The dead man and his workmate are thought to have originated from eastern Europe.
The fatal accident victim came to the Province 12 years ago and lived in the Moy area.
He was in his 50s, the father of two children, and an experienced builder.
His name had not been officially released yesterday.
Craigavon councillor Johnny Buckley said: “I lost two uncles as the result of farm accidents in 2010 and 2011 and I know the trauma and deep hurt they can cause.”
Our hearts go out to the family of the deceased, and we feel for the Reillys and the contractor who are devastated by the death.”
Mr Anderson commented: “Northern Ireland has suffered from a number of farm accidents over the years and they invariably have a devastating effect. I live just a mile cross-country from the Reillys and I send all concerned my sympathy.”
It happened at 1.30pm on Tuesday and the emergency services rushed to the scene where it is thought the man died instantly.
His workmate was rushed to hospital and was released later in the day.
Reports that the contractor suffered a heart attack at the scene were unfounded, but the experience affected him profoundly and he was deeply upset.
Mr Buckley said: “I have spoken personally to Ivan, and the entire family is deeply upset by what has happened. It wasn’t a case of a roof giving way. It appears that they fell off the framework, with the shed literally within a week or so of completion.”
The police confirmed the death of a man in his 50s, while Health and Safety commented, “We have been made aware of a fatality due to a serious incident during construction work in the Craigavon area and are investigating.”
Craigavon Mayor Colin McCusker commented, “I am shocked at this terrible news and my thoughts and prayers are with the family and everyone impacted by this incident.”