Adam Purinton, 53, who is already serving life in prison on a state murder charge, pleaded guilty in US District Court in Kansas City on Monday to three federal hate-crime charges alleging that he targeted the men because of their actual and perceived race, colour, religion and national origin.
He had earlier in March pleaded guilty to first-degree murder of 32-year-old Kuchibhotla and two counts of attempted first-degree murder in state court in the shootings of the Indian tech worker's friend Madasani and a bystander.
The US Attorney's Office in Kansas had filed hate crime charges against Purinton last June.
