A man from Lincolnshire has been named as one of two pest controllers found dead at a poultry processing factory in Norfolk after a suspected gas leak.
The body of Neil Moon, 49, from Spalding, was found at Banham Poultry in Attleborough, Norfolk, last week.
The other victim has been named by police as 34-year-old Jon Collins from Watton, in Norfolk.
Norfolk Police said a possible refrigeration gas leak was being investigated as a line of inquiry.
Initial Home Office post-mortem examinations were carried out this week and require further investigation, the force said.
Mr Moon's widow who did not give her name, described him as "the most amazing husband and father".
"There are no words to describe the loss I feel," she said. "Life will never be the same again.
"Tonight there will be a brighter star in the sky."
His son described him as "my hero and the best father I could've ever asked for", and his daughter said: "I will miss him so much and cherish all the memories we had together."