A man who shot dead a tech worker from India has received three life sentences for the racially motivated attack.

Adam Purinton, 52, killed Srinivas Kuchibhotla, 32, and wounded Alok Madasani at a bar in the city of Olathe, Kansas, in February last year. Purinton called the men “terrorists” and yelled “get out of my country”, before later shooting them.

He said he fired on the two men, who worked as engineers at GPS-maker Garmin, thinking they were Iranian. A third man, 24-year-old Ian Grillot, was wounded when he tried to intervene.

Purinton, from Olathe, had already been jailed for 50 years without parole on state murder charges.

The attack drew worldwide condemnation and shocked the Indian community in the US.

Federal prosecutors said Purinton targeted the two Indian nationals “because of their actual and perceived race, colour, religion and national origin”.

The prosecution and defence teams had jointly requested a sentence of life imprisonment without parole on hate crimes charges for Purinton.