THORNTON, Colo. -- The Internal Revenue Service went after an Arvada man for taxes on income he did not earn because his Social Security number was used by an undocumented immigrant to work at a Thornton landscaping firm, a CALL7 Investigation found.

Ted Vidimos received a letter from the IRS last year, saying he owed more than $8,000 in taxes on about $40,000 the IRS believed he earned at landscaping company Urban Farmer since 2008, IRS records provided by Vidimos show. Vidimos questioned the hiring practices at Urban Farmer because of the facts around the hiring of the man who stole his identity.

“My gut feeling is they have an integrity issue,â€