Omar Thornton went on a shooting rampage killing eight co-workers...

Omar Thornton went on a shooting rampage killing eight co-workers before turning the gun on himself on Aug. 3, 2010 in Manchester, Connecticut. (June 2010) Credit: Getty Images

Police in Connecticut say their investigation of last year's shooting in which a man killed eight co-workers found no evidence to support his claims of that he was a victim of racism.

Manchester Police Chief Marc Montminy says Omar Thornton, who was black, interpreted his lack of seniority at Hartford Distributors as evidence of racism at the beer distribution company.

Thornton shot 10 people within three minutes in August before killing himself. Immediately before the shootings, he was fired for stealing beer.

Montminy says investigators found no evidence of racism. He says they were told that a drawing of President Barack Obama with a noose around his neck was seen on a bathroom wall months before the shootings, but the company quickly removed it.

Manchester police released the report Thursday.

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